18 ms·

Ask HN: What did you find out or explore today?

• blahaj 9mo ago
  I found out today that the location header of an HTTP redirect can be a tel:+ URI and phone's will actually ask you whether you want to call that number.
  • mediumdeviation 9mo ago
    Links can have that as their href and it will also work as you'd expect. It's the telephone equivalent of the more well-known mailto: scheme
    • econ 9mo ago
      Now we should add a ?message= query string to be read out loud in the users voice.
  • Aachen 9mo ago
    Did you know that you can assign arbitrary programs (protocol handlers) to arbitrary protocols?
• german_dong 9mo ago
  [flagged]
• giraffe333 9mo ago
  I was reminded of the US Constitution's 10th amendment and reading some of the history around it. > The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people. Very relevant to what's going on today with National Guard and ICE deployments. https://www.axios.com/2026/01/14/10th-amendment-ice-trump-illinois-minnesota https://www.axios.com/2026/01/14/10th-amendment-ice-trump-il... (or please google whatever source you find reliable about the topic)
  • Fezzik 9mo ago
    Also related and worth a read, I think, is the Supreme Court case Youngstown Sheet & Tube Co. v. Sawyer, 343 U.S. 579 (1952). The content of the dispute is different, as it involves the President seizing private property, but it is (one of?) the seminal cases regarding the scope of presidential powers. Justice Jackson’s concurring opinion is, at least for now, considered the best articulation of when the President may take unilateral action.
• dang 9mo ago
  I've been exploring the origins of the 'relational turn' in psychoanalysis that began after WWII and ramped up in the 1970s. Psychoanalysis got vastly more interesting after Freud and I had no idea!
  • nurettin 9mo ago
    [flagged]
  • Gerard0 9mo ago
    Nice! What are you reading?
    • dang 9mo ago
      I'm currently reading a lot of Robert Langs, who was a big deal in the 70s but now seems largely forgotten. Besides that, Winnicott, Bion (not that I understand him), some Thomas Ogden, a whole lot of Harold Searles, a bit of Bollas, Linda Hopkins's incredible biography of Masud Khan, other stuff I'm forgetting right now. Where do your interests lie?
      • Gerard0 9mo ago
        I never heard of Robert Langs nor Masud Khan before, thanks! Let me appropriate something I heard Jean Allouch (fantastic guy, died some 2 years ago) say: "What interests me is madness and the way of welcoming it, which is called psychoanalysis." I used to say I practice lacanian psychoanalysis, but more and more (thanks to exchange with colleagues, seminars and so on) I have been trying to expand my knowledge. Just like you discovered, there are so many great ideas and authors which were simply forgotten. It's a tough path to walk!
        • dang 9mo ago
          Now that's fascinating. I wonder how many practicing psychoanalysts we have on HN - you may be a singleton! I could write a dozen replies but here's one: Not knowing of Khan makes sense because he was not only expelled out of British psychoanalysis but mostly erased from its history. From the mid-50s till the mid-70s, though, he was the rock star and enfant terrible of that scene, itself filled with charismatic characters. The story is cinematic, and tragic as he engineered his own destruction. The biographer, Linda Hopkins, had good timing: many of the key players were still alive, but in their twilight years and ready to spill the beans. She earned their trust—the good way, by being trustworthy—and ended up with troves of information, not just about Khan but others in that world, such as Winnicott, for whom Khan had been a substitute son and close editor if not co-author. Before reading it, I recommend first the essay that Wynne Godley published about Khan in the London Review of Books, a brilliant piece which managed to shock the community as late as 2001, decades after the events he wrote about. The letters following the article are worth reading as well. (Godley's piece is at https://www.lrb.co.uk/the-paper/v23/n04/wynne-godley/saving-masud-khan https://www.lrb.co.uk/the-paper/v23/n04/wynne-godley/saving-.... This follow-up profile is also worth reading and includes a hilarious anecdote about Khan and Lacan: https://www.bostonreview.net/articles/robert-s-boynton-return-repressed/ https://www.bostonreview.net/articles/robert-s-boynton-retur....) Hopkins's biography is marvelous in that she includes Khan's dark side but shows him as larger than it. The NYT review began with "If I were a snob, a liar, a drunk, a philanderer, an anti-Semite, a violent bully, a poseur and a menace to the vulnerable, I would want Linda Hopkins to write my biography." How's that for a review? The publisher put it on the cover of the second edition :) Langs is an entirely different character but ended up almost as isolated as Khan did. His core insights about unconscious perception and unconscious communication, if true, are enough to change how analysis and therapy should be done. But he communicated them so oppositionally that the field spat him out. That's my sense of it at least. He may have lacked the charisma to inspire much of a following, though he was a gifted if fire-breathing supervisor. His vision of analysis and therapy is so austere that I imagine no one, including Langs, could actually practice it—yet his core claims are so compelling that I don't see how they can be ignored either. He seems to have been dropped because his challenge was too uncomfortable. Lacan is one I have never been able to understand or relate to. Do you want to suggest an entrypoint?
• GrowingSideways 9mo ago
  I've been trying to research drone navigation tech from what we have learned so far from the russian/ukraine war. I'm very much not a hardware guy but software by itself has been feeling kind of useless or even crueler than usual.
• sneilan1 9mo ago
  Published an edit today (post dated in Nov. but I've rewritten it 5x now) on my tutorial to use llama3.2:3b to generate fine tuning data to train tinyllama1.1b https://seanneilan.com/posts/fine-tuning-local-llm/ https://seanneilan.com/posts/fine-tuning-local-llm/ It took a while to figure out that when I made llama3.2 generate json, it didn't have enough horsepower to generate training data that was varied enough to successfully fine tune llama1.1b! Figured that out :) Something you never learn with the bigger models. Every token costs something even if it's a little bit.
• helltone 9mo ago
  I'm building in robotics. Setting up a new 3d camera today. I found that the 10m active USB C cable that I bought transfers power in both directions, but only transfers data in one direction, it turns out to be some weird video USB variant. Next I needed to plug a gripper into a modbus controller. That uses an M8 8-pole 20cm cable. The controller manufacturer recently decided to switch from male to female connector, so now the cable needs to be male-male. After searching online for hours, I believe that is impossible to find as everyone only sells male-female cables. I'm continuously surprised by how difficult it is to plug things together and how non-descriptive cable "standards" are about the actual capabilities of cables and connectors.
  • showerst 9mo ago
    I've recently been modernizing an old milling machine, and learned that for most types making your own cables is not that hard. The one painful thing is that there are a zillion tools involved for the different types of crimps and terminations.
  • dapperdrake 9mo ago
    Maybe someone can manufacture a male-to-male adapter. Those exist for VGA.
  • LoveMortuus 9mo ago
    When you say "3d camera" do you mean stereo 2D, or something else that I haven't thought of yet?
• lanyard-textile 9mo ago
  I found out my crimson-bellied conure is laying an egg today! She's nesting in some towels now, chirping away while she works on laying it. Having an egg is relatively hard on parrots. I've given her lots of food and warmth to prepare. She is comically hungry -- she's usually not such a big eater, but she's happy today to be scarfing down her apple slices, fruit pellets, and safflower seeds. She usually sleeps at the bottom of her cage, beneath a towel I put down for her. It's already unusual for parrots! But tonight she has made quite a nest with her towel: It's folded in half like usual, but she has nuzzled her way between the fold, so she has the towel underneath and on top of her. It's super cute. I'm treating her with delicacy but she is determined to be a wild child of a bird. She's still flying around during the day and moving around plenty. I don't think I would be so confident if I had an egg like that inside me. She has a stone perch that she likes to nibble on when she's working on an egg. I've wondered if it is some innate need to nourish herself with calcium, or if it's stress relief :) So that's my night. Sitting outside of the metaphorical delivery ward with a metaphorical cigar, making sure she lays this egg that isn't even fertile to begin with! Birds :)
  • aryehof 9mo ago
    A beautiful pause in my day reading this - many thanks. Would love to see a photo!
    • lanyard-textile 9mo ago
      :) Thanks for reading. No egg this morning yet. But here's some pictures of her! My pretty little Christmas colored bird. https://imgur.com/a/AZDdvgO https://imgur.com/a/AZDdvgO
      • dapperdrake 9mo ago
        Beautiful bird.
  • yMEyUyNE1 9mo ago
    > I've wondered if it is some innate need to nourish herself with calcium, or if it's stress relief :) methinks: Calcium is required to make the egg shell. Calcium supplements would help, just in case "Life finds a way".
• defrost 9mo ago
  Today, and yesterday, I've been poking about the history of what was once the longest steam powered fresh water pipeline in the world https://en.wikipedia.org/wiki/Goldfields_Water_Supply_Scheme https://en.wikipedia.org/wiki/Goldfields_Water_Supply_Scheme I'm looking into rennovating a massive agricultural machine shed ~ two stories high in the middle built some 80+ years ago using sections of spur pipeline as central upright poles to hold up some beefy jarrah trusses. The "verandah" wings flaring out from there were bulit from flimsier timber that's rotting and the iron sheet walls are starting to peel away. The posts are of interest as they have old markings and water fittings, tee pieces, etc. It's not far from one of the original steam powered pumping stations that moved water through the main line.
• khr 9mo ago
  I found out that the adhesives I've encountered from time to time that remain tacky and easily moved or removed are called "non-hardening" adhesives. This was after using E8000 glue for a headphone repair today.
• Helmut10001 9mo ago
  I found out I can automate my 5,12kWh house battery through local-only RS485 connection, and directly setting registers using ModbusTCP from Home Assistant. I then drafted an automation with hysteresis and damping that tries to aim for Net-Zero export/import (pv surplus/grid). It appears to work!
  • Gibbon1 9mo ago
    The deranged thing about RS485 and modbus is it's old cheap and just works.
  • isoprophlex 9mo ago
    What brand/make of battery is that? I'm tentatively interested in home battery storage, but definitely not interested in shit that requires an app, an internet connection, and shitty saas spyware...
    • Helmut10001 9mo ago
      MARSTEK VENUS E 5.12kWh. Got it in August 25 for 1050,00 EUR. It is awesome how open it is designed, I was able to activate and automate it without adding it to my local network (wifi) or using the Marstek App even once. I wrote a blog post here [1]. [1]: https://du.nkel.dev/blog/2026-01-11_marstek-battery-homeassistant/ https://du.nkel.dev/blog/2026-01-11_marstek-battery-homeassi...
      • isoprophlex 9mo ago
        5 kWh for 1k€! Wow! Thanks for sharing Edit: and thanks for the writeup. This is exactly what I was looking for
        • Helmut10001 9mo ago
          Thanks for the kudos. Just note, I will add an update tomorrow - I optimized the automatic, it is now working pretty well. Before it was "overshooting" and the battery fed into the grid, or went into standby too often, just to start discharging again.
• mbb70 9mo ago
  I explored the space of valid Spelling Bee puzzles and found out the lowest scoring puzzle is (x)bejkou with 14 points. Hoping they do it for April 1st one year.
  • pvillano 9mo ago
    jukebox? jeux is found by my solver, although I'm not sure Sam would include it. I'm working on a site for solving Spelling Bee, Letter Boxed, Strands, etc. What was your algorithm? Compute a bitset for every word, for each word with 7 unique letters, check against every other word if it has a subset of those letters? Surely there's a better than O(n^2) way
    • mbb70 9mo ago
      Start with your chosen dictionary, remove small words and all 's'es. Then find all words with 7 unique letters, then get the unique set of letter sets. These are your valid puzzles times 7 for each selection of a center letter. Construct a trie of your dictionary. For each letter of each puzzle, walk the trie using only the puzzle letters. When you find a word, if it used the center letter, add to list. In practice it's log(n) for size of dictionary.
• ilinx 9mo ago
  I’m reading Domain Driven Development and learning why so many of my projects have been tough to maintain. I also recently learned that you can get ancient coins for very little money if you don’t care about resale value or need them to be in pristine condition. I bought some coins from kingdoms that I’d never heard of. Many are thousands of years old! It’s fun holding a piece of history like that.
  • rocketbin 9mo ago
    Any recommendations on where to acquire?
    • ilinx 9mo ago
      I buy mine from VCoins. They’re pretty inexpensive if you don’t need them certified or anything, and many sellers are very above board and professional.
  • p_v_doom 9mo ago
    > I’m reading Domain Driven Development and learning why so many of my projects have been tough to maintain. Oooh, thats a good one. Next read the Architects paradox, Why Greatness cannot be planned and Understanding Variation and your views of the world will be forever altered. Or pick up "Architecture Modernization" by Nick Tune if you want more tools to do stuff and if you do not want to achieve enligntenment. _____ Where did you acquire cheap ancient coins? ebay? May be cool to get some for my dnd group
    • ilinx 9mo ago
      Thanks for the recommendations! I’m actually getting to the end and wondered where to go next. Perfect timing! I’ll go ahead and order those today :). > Where did you acquire cheap ancient coins? ebay? May be cool to get some for my dnd group I bought most of mine on VCoins. The few I bought weren’t certified or anything, but they have lots of very well established sellers. I got a few bronze and silver coins from the Middle East and India. They were in good shape at about $10-20 US (plus international shipping). I also got some nicer Byzantine and Roman coins in the $50 US price range. I tried to group my orders from each seller to save on shipping. So far everything I’ve gotten is exactly as pictured, and the transactions have been very smooth. I got a couple more from a local dealer. The prices were a bit higher, but he was a lot of fun to talk to, which more than makes up for the price difference.
• vishalontheline 9mo ago
  Today I recorded myself skateboarding and found out that I don't move nearly as much as I think I do! No wonder I'm going so slow!
  • cindyllm 9mo ago
    [dead]
• cookiengineer 9mo ago
  I've read the adverserial attack paper, and I'm currently implementing a captcha based on images that have masks on them so that any LLM agent with a visual model will classify it wrong. The idea is to use something like a slider that shows different images combined with a memory task, like "find out the pair of images" and then offer maybe a text input field where the user has to write 1,2,3 or something similar with the image numbers to pass the captcha. The tldr is that I'm abusing the famous panda image that's classified as a gibbon as a technique to build a bot captcha.
  • willvarfar 9mo ago
    crazy to think that soon not being able to successfully complete the captcha will be a signal that the user is human
• squidgyhead 9mo ago
  I am cleaning up some pointer arithmetic stuff for multi-dimensional C style arrays. I managed to replace the code with a std::inner_product minus a std::accumulate (to accomodate for the fact that the upper array bound is exclusive, ie one-past-the-end).
  • avadodin 9mo ago
    I once "fixed" a port of a program to Linux. It was generating the wrong output — that is: not the same as on Windows. My fix initialized a thitherto uninitialized array with the VisualC++(ca. 5.0) debug build default value.
• bunnybomb2 9mo ago
  That running and taking cold showers really do make me more focused! And that i will have to be the one that fixes my life and builds my future. Deep, i know
• GarnetFloride 9mo ago
  Reading up on the history of information management, and the real killer app for paper was double-entry bookkeeping, which made Venice rich and contributed to starting the Renaissance.
  • gglitch 9mo ago
    Any titles or resources you have found particularly interesting?
    • GarnetFloride 9mo ago
      Warning: opening a can of worms. Ann Blair is a great source on general, but there are so many facets to this topic here's a list that I have read or am going to read. * The Notebook: A History of Thinking on Paper by Roland Allen * The Carrier Bag Theory of Fiction by Ursula K. Le Guin * Too Much To Know: Managing Scholarly Information Before the Modern Age by Ann M. Blair * Communicating with Slip Boxes: An Empirical Account by Niklas Luhmann * Akin's Laws of Spacecraft Design * Writing the Laboratory Notebook by Howard M Kanare * Paper Machines: About Cards & Catalogs by Markus Krajewski * A System for Writing by Bob Doto * Building a Second Brain By Tiago Forte * Index, a History of the by Dennis Duncan * Forgetting Machines: Knowledge Management Evolution in Early Modern Europe by Alberto Cevolini * The Filing Cabinet: A Vertical History of Information by Craig Robertson * How to Take Smart Notes by Sonke Ahrens * Filing and Database Systems by Jeffrey Robert Stewart, Judith A. Scharle, Judith Scharle Greene * Organizing from the Inside Out by Julie Morgenstern * The Library: A Fragile History by Andrew Pettegree, Arthur der Weduwen * The Extended Mind by Annie Murphy Paul * Stolen Focus: Why You Can't Pay Attention by Johann Hari * Papyrus: The Invention of Books in the Ancient World by Irene Vallejo * Filing by Jeffrey Robert Stewart, Judith A. Scharle * How Romantics and Victorians Organized Information by Jillian M. Hess * A Writer's Notebook by W. Somerset Maugham * The Bullet Journal Method by Ryder Carroll * The Medieval Scriptorium by Sara J. Charles * Chance Particulars by Sara Mansfield Taber, Maud Taber-Thomas * The Great Mental Models Volume 1- General Thinking Concepts by Parrish, Shane; Beaubien, Rhiannon * The Product is Docs by Christopher Gales * Antinet Zettelkasten by Scott P. Scheper Articulating design decisions by Tom Greever The Card System at the Office by J Kaiser * Systematic Indexing by J Kaiser * Commonplace Books and the Teaching of Style by Lynee Lewis Gaillet * Magic and hypersystems : constructing the information-sharing library by Harold Billings. * The Magical Number Seven, Plus or Minus Two: Some Limits on our Capacity for Processing Information by George A. Miller * The Commonplace Book by Elizabeth Smither * The Oxford Handbook of Expertise * Trees, maps, and theorems: Effective communication for rational minds by Jean-luc Doumont * Applied Secretarial Practice by Rupert P. Sorelle and John Robert Gregg * The Card Catalog by Carla Hayden * What is a Document by Michael Buckland * The Commonplace Book by Ann Blair * Make Better Documents by Anil Dash * A Core Calculus for Documents by Will Crichton and Shriram Krishnamurthi * The Craft of Research by Wayne C. Booth, Gregory G. Colomb, Joseph M. Williams * Information by Anthony Grafton * The Card Catalog by Carla Hayden * Files: Law and Media Technology by Cornelia Vismann * Living Documentation: Continuous Knowledge by Cyrille Martraire * Living in Information by Jorge Arango * How to Write a Technical Paper: Structure and Style of the Epitome of your Research† by Georgios Varsamopoulos * Information Development: Managing Your Documentation Projects, Portfolio, and People by JoAnn T. Hackos * Information Architecture: For the Web and Beyond by Louis Rosenfeld, Peter Morville, Jorge Arango * Software Technical Writing: A Guidebook by James (jamesg.blog)
• StanislavPetrov 9mo ago
  I found out that reading 900 wpm and actually comprehending what you are reading is actually possible and not that difficult at all.
  • rahimnathwani 9mo ago
    How did you discover this?
    • alance 9mo ago
      Might have been this thing: https://v.redd.it/fpa35i6b97dg1/CMAF_1080.mp4 https://v.redd.it/fpa35i6b97dg1/CMAF_1080.mp4
  • moonzfxs 9mo ago
    may you give any tips?
• happiness0067 9mo ago
  Been working on sheet cutting optimization for https://measuretocut.com https://measuretocut.com today and it sent me straight down the cutting‑stock / 2D bin‑packing rabbit hole. What started as “wouldn’t it be nice if the site could tell you how to cut your wood sheets optimally?” turned into reading about NP‑hard problems and flipping through old operations research papers like I was cramming for an exam. The funny part is how far the mathematical version of the problem is from what measuretocut.com actually needs to output. In reality you have kerf, ugly offcuts, and the fact that nobody wants a cutting diagram that looks like a circuit board. We really have to take into consideration a 2nd optimization, it needs to be an output that a person in a shop can glance at and immediately understand.
  • dapperdrake 9mo ago
    Are the SAT solvers there yet?
• johnfn 9mo ago
  That lodash-es doesn’t ESM lodash/fp, which means there is no straightforward way of using it with Vite after version 5. God help me. I don’t even want to use it, I just want to get legacy code building on a modern version of Vite without rewriting a couple thousand lines of code. Aaaargh
  • mediumdeviation 9mo ago
    Another fun fact - lodash/fp doesn't deduplicate with lodash when bundled. For a couple of months I was wondering why our app had bundled two copies of lodash. I dismissed it as a measurement artifact at first. It took so long to realize there was actually two copies of lodash and it was because one developer on our team had a preference for fp syntax.
  • esperent 9mo ago
    > lodash-es doesn’t ESM lodash/fp Most of my career has been JS and TS and I have no idea what this means.
    • soulofmischief 9mo ago
      I'm guessing you're only a few years into your web career, so I'll provide some background. lodash is a popular library that fills in many blanks that pre-2015 JavaScript had. It still provides value in modern JavaScript, but it's no longer as important as it used to be. JavaScript is actually based on a standard called ECMAScript. ActionScript shares this standard, as an example. In 2015, we got ECMAScript 5, which modernized JavaScript in many ways. With that came many changes such as ECMAScript moving to a yearly update cadence, in response to the large amount of effort involved in implementing ES5, which came with a ton of changes. One of those changes was ES modules, or ESM, which provided an official way for working with modules. The import/export syntax you're used to is a part of that spec. Before this, we had competing non-standard specifications for module loading, such as CommonJS. ES5 reduced the need for tools such as lodash, and so it's less common in newer projects. It also is old enough to have been around before ESM was adopted, and is a large project, and so like many projects it either had to completely rewrite everything, or use transformation tools such as babel. If not, the user was responsible for using babel/etc to transform the code. Now, in modern stacks, because this is unnecessary, native support for CommonJS is being phased out, leading to OP's conundrum. Now we have TypeScript, and the horrors of JavaScript 10+ years ago are a fading memory.
• stackghost 9mo ago
  I found out it's easy to write Swift/Appkit apps without the dumpster fire that is Xcode! It turns out it's really easy to do it with good old `make`.
  • kristianp 9mo ago
    That sounds interesting. What reference did you use to get going?
    • stackghost 9mo ago
      Just the developer.apple.com docs and talking to my friendly neighborhood LLM
• solomonb 9mo ago
  That its impossible to find an oil can with a zerk fitting. I need one for my bridgeport that uses zerks for oil and not grease.
  • mustardo 9mo ago
    For machine tools I just use an oil can with a finer than normal tapered tip, this will depress the ball bearing in zerk / grease nipple fittings no problems, this also works with the ball oilers typically found on lathes etc. You can cut a tiny slit in the end too if that helps get oil in https://www.wentztech.com/metalworking/projects/convert-a-cheap-oil-can-to-use-with-machine-ball-oilers/ https://www.wentztech.com/metalworking/projects/convert-a-ch...
  • Loughla 9mo ago
    I gave up on that years ago. You can find guns that work but they're rare and crazy expensive. You can make an oil gun from a grease gun that works but that bitch will oil the machine and you and the floor and the wall. I just swapped the fittings to get rid of the zerk nipples for something I could use with a standard oil fitting.
  • dardeaup 9mo ago
    Interesting! I never imagined that would be a thing. Thought that zerks were only for grease.
• onion2k 9mo ago
  I'm exploring writing a point and click adventure, and I've found out that they're basically just hierarchical state machines with a pretty UI. This is useful because it simplifies a lot of things. The downside is that now I'm wondering if I could write one in SQL.
• biotechbio 9mo ago
  When you use a microscope to magnify something, the objective (magnifying lens) is literally taking the Fourier transform of the image. The optical system recovers up to a limiting frequency, determining the spatial resolution of the image.
  • SonOfLilit 9mo ago
    Gotta say, I assumed this is some sort of virtual/imaginary thing, but it seems like there's a point in the optical system where if we placed a screen, we'd see the FT of the image coming in! And before we had digital image processing people used to place masks there to filter out low frequency or high frequency details in the image. Which is absolutely insane and I have no comprehension of how the physics works out!
    • CamperBob2 9mo ago
      https://www.youtube.com/user/huygensoptics https://www.youtube.com/user/huygensoptics is the YouTube channel for this sort of thing. Set aside some time, you'll be there a while.
• ff00 9mo ago
  Found out about finding timing of http requests https://susam.net/timing-with-curl.html https://susam.net/timing-with-curl.html
• scaramouche5 9mo ago
  I found out that killer whales hunt and kill great white sharks. https://www.nationalgeographic.com/animals/article/orcas-spotted-hunting-great-white-sharks https://www.nationalgeographic.com/animals/article/orcas-spo...
• deleted 9mo ago
  [deleted]
• qiqitori 9mo ago
  Learned about superheterodyne receivers. Recently I've been studying up on RF technology, happened to come across superheterodyne receivers a short while ago, decided to research them today, saw that Technology Connections had a video on them, watched it, and felt reasonably enlightened.
  • brcmthrowaway 9mo ago
    Are there AI enabled antennas by now?
    • lormayna 9mo ago
      I don't know about AI antennas, but smart antennas[1] are a things since more than 15 years. Basically they are array of antennas that can change via software the directivity (mainly used in radar systems) or increase/reduce power transmission and direction (this is used in 5G cell). 1 - https://en.wikipedia.org/wiki/Smart_antenna https://en.wikipedia.org/wiki/Smart_antenna
      • neversaydie 9mo ago
        There's also this, from long before the gen AI era: https://en.wikipedia.org/wiki/Evolved_antenna https://en.wikipedia.org/wiki/Evolved_antenna
        • lormayna 9mo ago
          This is probably one really fascinating projects, but there is no AI behind this kind of things. It's just randomly trying new configurations and select the best ones in an evolving way. During my master degree, I attended an antenna design course and I almost burnt my laptop trying to optimize a dipole array as a side project.
• LunicLynx 9mo ago
  I found git worktree today.
  • nomilk 9mo ago
    Me too just a week ago. Git worktree has a high 'usefulness-to-effort' ratio! We shouldn't feel bad, Guide van Rossum was there once too! https://x.com/gvanrossum/status/1379893622145871873 https://x.com/gvanrossum/status/1379893622145871873
  • nisiddharth 9mo ago
    If you haven't yet, find `git rerere` as well
• numpad0 9mo ago
  Surströmming, the Swedish can of fermented fish, is strongly recommended to be punctured while submerged in tap water. It is not pasteurized and is actively fermenting in storage, and the content will spray around if opened under atmospheric conditions. When transported on cargo flights, they are double packed as cans in a barrel in a crate, and considered UN classified "miscellaneous dangerous goods" with identification number UN3334 "Aviation regulated liquid, n.o.s." with accompanying scary(albeit monochromatic) warning stickers, if at all accepted. When transported on ocean going vessels, they are often required to be in its own shipping container, again double packaged and correctly labeled.
  • Aachen 9mo ago
    I hope you didn't find that first paragraph out the hard way today!
    • numpad0 9mo ago
      Haha, no, I just came across these trivia... it scares me more than it intrigues me :p
  • PokemonNoGo 9mo ago
    You forgot to mention that it is actually quite delicous.
  • olelele 9mo ago
    It is also mostly eaten outdoors :)
  • deandotwork 9mo ago
    reminds me ... I opened a can of Illy coffee today. It has a big red warning saying similar under pressure warning. I went...."pfhhh, how much pressure could be in this little can?" and it went ba-boom, coffee grounds all over me and my kitchen. I will heed the Sustromming warning if I ever come across a tin
  • nyantaro1 9mo ago
    Is it even good?
• netghost 9mo ago
  I found out that the guy who broke the thing I was working on was… me.
• willvarfar 9mo ago
  I had a great euphoric epiphany feeling today. Doesn't come along too often, will celebrate with a nice glass of wine :) Am doing data engineering for some big data (yeah, big enough) and thinking about efficiency of data enrichment. There's this classic trilemma with data enrichment where you can have good write efficiency, good read efficiency and/or good storage cost, pick two. E.g. you have a 1TB table and you want to add a column that, say, will take 1GB to store. You can create a new table that is 1.1TB and then delete the old table, but this is both write-inefficient and often breaks how normal data lake orchestration works. You can create a new wide table that is 1.1TB and keep it along side the old table, but this is both write-inefficient and expensive to store. You can create a narrow companion table that has just a join key and 1GB of data. This is efficient to write and store, but inefficient to query when you force all users to do joins on read. And I've come up with a cunning forth way where you write a narrow table and read a wide table so its literally best of all worlds! Kinda staggering :) Still on a high. Might actually be a conference paper, which is new territory for me. Lets see :) /off dancing
  • nurettin 9mo ago
    You mean you discovered parallel arrays?
    • willvarfar 9mo ago
      specifically I've discovered how to 'trick' mainstream cloud storage and mainstream query engines using mainstream table formats how to read parallel arrays that are stored outside the table without using a classic join and treat them as new columns or schema evolution. It'll work on spark, bigquery etc.
    • hahahahhaah 9mo ago
      Whats a good place to see parallel arrays defined. I have no data lake expetience. Know how relational db works.
      • nurettin 9mo ago
• tejtm 9mo ago
  replaced the broken spring on an ABANA style treadle hammer. breaking it in the first place was more fun
• raybb 9mo ago
  I am in Mexico City and I learned quite a bit about Santa Muerte. Hard to know how much truth there is in what the locals tell me but supposedly people who live in such dire conditions they feel closer to death than to life pary to Our Lady of Holy Death for protection. Wikipedia says it is the fastest growing religion in the world. https://en.wikipedia.org/wiki/Santa_Muerte https://en.wikipedia.org/wiki/Santa_Muerte
• spenjovewkwhalo 9mo ago
  The origins of Port and Starboard on ships. Chosen to be independent of a mariners orientation. Starboard - most sailors were right handed and the steering oar was placed on the right. Star = steer. Board = side of boat. Port - as steering oars got bigger, boats tended to dock on the left hand side. This became to be known as “lardboard” which sounded too much like starboard, so it was changed to “Port” (as in the side typically facing the port side.
  • nicbou 9mo ago
    In French, there is babord and tribord. The mnemonic is ba-tri, or “battery”.
    • harperlee 9mo ago
      In Spanish, it's babor and estribor. My personal mnemonic (me and most people being right-handed) is that the estribo (the stirrup, but I always though it was the reins - TIL) in a horse go on the right hand and the boba hand (the clumsy hand) is the left one.
    • Gazoche 9mo ago
      Oh I didn't know this one. For me the mnemonic was " 'ba' has an 'a' like 'gauche' (left), and 'tri' has an 'i' like 'droite' (right)".
    • sdoering 9mo ago
      In German it is Steuerbord und Backbord. And my mnemonic is the "r" in Steuerbord = the "r" in right hand side (when looking to the bow that is).
    • azepoi 9mo ago
      Both likely come from (middle) dutch bakboord (the side of your back) facing the stierboord (the side with the steering oar) . Stierboord became estribord then tribord. Its more explicit in modern german and dutch.
  • toomuchtodo 9mo ago
• abetusk 9mo ago
  That the FOSS bazaar broke off into megachurches while still maintaining a healthy small scale and independent bazaar [0]. That FOSS sustainability is much more complicated than just "throw money at it". That there's "metal paste" [1]. That the zodiac killer's messages have been cracked for five years now (I didn't know they were cracked to begin with) and that it was a shift and substitution cypher [2]. The telltale clue was that the symbol frequency was uniform but under shift it become non-uniform. How to solder those pesky connectors that come on the tiny servo motors you can get from Aliexpress [3]. That Firefox only has 2.3% market share [4]. Multiscale 3d truchet patterns are freakin complicated [5]. That prioritizing tasks by the linear combination of priority and effort remains a good strategy. [0] https://opensourcesecurity.io/2026/01-cathedral-megachurch-bazaar/ https://opensourcesecurity.io/2026/01-cathedral-megachurch-b... [1] https://www.youtube.com/watch?v=Ys-RMVJ89dk https://www.youtube.com/watch?v=Ys-RMVJ89dk [2] https://www.youtube.com/watch?v=3CJsKJ0XKP4 https://www.youtube.com/watch?v=3CJsKJ0XKP4 [3] https://www.youtube.com/watch?v=KHulZtR2Qkg https://www.youtube.com/watch?v=KHulZtR2Qkg [4] https://gs.statcounter.com/browser-market-share https://gs.statcounter.com/browser-market-share [5] https://archive.bridgesmathart.org/2018/bridges2018-39.html#gsc.tab=0 https://archive.bridgesmathart.org/2018/bridges2018-39.html#...
  • nailer 9mo ago
    Whoa. Via Grok: Solved Zodiac Killer ciphers: • Z408 (July 1969): Solved in days by Donald & Bettye Harden. Message (with misspellings): “I like killing people because it is so much fun it is more fun than killing wild game in the forrest because man is the most dangeroue anamal of all to kill something gives me the most thrilling experence it is even better than getting your rocks off with a girl the best part of it is thae when I die I will be reborn in paradice and all the I have killed will become my slaves I will not give you my name because you will try to sloi down or atop my collectiog of slaves for my afterlife ebeorietemethhpiti” • Z340 (November 1969): Solved in 2020 (after 51 years) by David Oranchak, Jarl Van Eycke, and Sam Blake; FBI confirmed. Message (with misspellings): “I hope you are having lots of fun in trying to catch me that wasn’t me on the TV show which bringo up a point about me I am not afraid of the gas chamber becaase it will send me to paradlce all the sooher because e now have enough slaves to worv for me where every one else has nothing when they reach paradice so they are afraid of death I am not afraid because i vnow that my new life is life will be an easy one in paradice death”
• Aditya_kachhawa 9mo ago
  Was reading about version control history and found out Git went from first commit to self-hosting in like a week. Linus was just mad about the BitKeeper licensing thing and hammered it out. Not some grand architecture - just "screw this, I'll do it myself." And somehow that became... everything. Wild.
  • e40 9mo ago
    I was monitoring the linux kernel mailing list when this happened. Wild times. It seemed then that something special was happening.
    • Aditya_kachhawa 9mo ago
      Oh wow, you were following the mailing list when it happened? That must've been entertaining. Did it feel significant at the time or just like another "Linus is pissed and building something" moment?
      • e40 9mo ago
        I definitely felt like I was watching something unusual and special. Watching it go from "I have this idea" to "I'm hosting the kernel on it" was insanely cool.
        • Aditya_kachhawa 9mo ago
          Kind of wild to think the version control system I use every day was built before I could even walk. Really appreciate you sharing that firsthand context, you don’t usually get that kind of perspective. I also found your Truth and Fascism piece on your site, and the correspondence vs. performative truth idea really clicked for me. The way it talks about institutions feels pretty universal — different forms, same power game, no matter the country.
• TimesNewMe 9mo ago
  I went on a tour of a miso factory today and learned about how it's made! What surprised me the most was that shiro (white) miso and aka (red) miso are both the same mix of soybeans, salt, and rice malt but fermented for different periods of time. As the miso ferments for longer, its color becomes darker while its flavor becomes milder and more complex. Beyond 3 years of fermentation, you get diminishing returns as its flavor becomes too acidic. After the tour, we got to sample some of the naturally fermented 3 years old miso, and it was easily the best I've ever had. Most miso you can buy in a grocery store is created through forced fermentation over a few months, so if you ever get a chance to try naturally aged miso I would highly recommend!
  • satvikpendem 9mo ago
    Same as white, green, yellow, black, pu erh tea, and all of their different varieties within those categories, it's all the same leaves, just different processes.
    • saltcured 9mo ago
      Well, not exactly in that there are cultivars and farm differences. In that way it is a little bit like grape wine, where different processing can produce very different wines from the same grapes, but there are also differences in grapes that can come through within a style.
      • satvikpendem 9mo ago
        In a way, yes; Wuyi rock oolong will be different than a high mountain Taiwanese oolong. But what most people think of as green vs black tea, they don't realize that it's the same exact plant. Camellia sinensis has only 2 cultivars, var. sinensis (the main one) and var. assamica.
        • saltcured 9mo ago
          Right. A lot of people also don't realize red and white wines often come from the same red grapes.
• hahahahhaah 9mo ago
  Go: r, err:= fn() Compiles if r is already declared. Creates a new lexical scope that has no access to the outer r. So the outer r doesn't get set. And I get a bug!
• atraac 9mo ago
  I've learned that being truthful in your resume as a SWE doesn't work anymore. I've had nearly 0 response rate to my applications, even if I was nearly a perfect match. Dude that we fired a while ago for being abysmally bad and non-productive gets interviews, raises and just got into ycombinator backed company by making up 75% of his resume(which I saw). We need a reset, this is getting ridiculous.
  • geuis 9mo ago
    Sounds like you could use some resume review help. And I'm not talking about bs AI linkedin level "resume review". I mean some review from someone who's been in the industry for a while. There's a way to contact me via my profile. If you can find that I'll try to help you out.
  • donatj 9mo ago
    Same general experience. I have seen friends and former coworkers who I know are mediocre devs but good at talking themselves up get placed multiple times this year. I've secured a single interview, company seemed like a great fit. System level Go apps, my bread and butter. No longer have to split my time with frontend? The dream. On round 2 their CTO basically shut me down 2 minutes in saying they're unwilling to do any sort of training and only looking for existing experts in their very specific niche. In round 1 the interviewer told me I seemed like a very good candidate, very positive about my experience. Said they'd been looking for a long while and I was one of the most experienced Go backend developers they'd interviewed. Round 1 was frankly one of the most positive interviews I'd ever had. Got extreme whiplash as round 2 was cut short at about the ten minute mark. I don't know for sure but I think a lot of companies are looking for an absolute Cinderella given the glut in applications. I don't think that guys going to find her. It's been a couple months now, their job posting is still up. I'd have been well up to speed and making meaningful contributions by now.
    • dapperdrake 9mo ago
      Man that honestly sucks.
• austin-cheney 9mo ago
  Adding arbitrary raw UDP connections to my browser based web tool.
• p_v_doom 9mo ago
  That I promised my boss to check the office fridge for what we need for the team breakfast and forgot about it. Also that Newfoundland has a pretty unique music tradition, that captures what irish music sounded before the Great Famine
• p00dles 9mo ago
  Today I took the subway at a different time than I normally do, and I saw a very different mix of people. Fascinating.
• omgmajk 9mo ago
  I explored the programming language nim a bit deeper for use in game programming with SDL3 bindings, but I came to find out that compiled nim code on Windows often triggers anti-virus because, from what I hear from people, nim is used a lot in malware development currently. Which is a shame because I really like that language. I haven't tested it myself, it's just things I have heard and read. Someone on r/gamedev told me to write the code in nim, generate C code and then compile it with zig cc. If anyone has any experience with this, please do chime in :)
  • imadethis 9mo ago
    I don't have any nim experience (sorry!) but I'm also exploring SDL3 with odin. I was able to get a naive battleship clone up and working very quickly, pretty neat. Next step is the new SDL3 GPU API.
    • omgmajk 9mo ago
      I haven't looked into Odin that much but I hear it's swell, so maybe I should!
  • archargelod 9mo ago
    It's usually code compiled with Mingw that gets AV false-positives in Nim. But, indeed, you can use clang or zigcc compilers instead. Nim has good support for Clang, so it works by just switching a single flag: `nim c --cc:clang main.nim` For zigcc - there is a wrapper package you can install with nimble: `nimble install zigcc` Then you can use it with: `nim c --cc:clang --clang.exe=zigcc --linker.exe=zigcc main.nim` Of course, you can save the flags in configuration files. You can look at my setup for inspiration [0]. [0] - https://codeberg.org/janAkali/grabnim/src/branch/master/config.nims https://codeberg.org/janAkali/grabnim/src/branch/master/conf...
• kunley 9mo ago
  I learned that my fav part of Apennines is famous for a lack of light pollution and thus is an astro-tourism target. Never paid attention to that aspect. I also learned that on Aug 12th this year a total eclipse of the sun can be observed from certain parts of Spain.
• geuis 9mo ago
  Screws weren't standardized until ww2. And even then, they really haven't been. Related video for those curious: https://www.youtube.com/watch?v=AKNB04slCUA&t=3s https://www.youtube.com/watch?v=AKNB04slCUA&t=3s
  • nicbou 9mo ago
    The channel Machine Thinking has many videos about screws, and about the early days of machines and precision. In Europe we have standard screws. Building with only M5 screws is a joy.
• 4b11b4 9mo ago
  Google Earth Engine's Foundation model via the ITU's seminar! This thing is incredible!
• relwin 9mo ago
  Recently procured an AirGradient air quality monitor and set up the build environment so I can customize its reporting capability and perhaps add some different sensors. Also didn't realize how much CO2 builds up during the night in my bedroom. Will have to mitigate this as I believe this contributes to my poor sleep habits.
• aaronbrethorst 9mo ago
  My home office gets up to about 1500ppm of CO2 by the end of the workday, which explains a lot about why I often feel exhausted after the end of a long, uninterrupted session in there (especially when I’m on back to back zoom calls). I now have several plants in there that are supposed to be especially good at sucking up CO2, and my sensor reports that the current level is slightly below atmospheric ambient CO2 levels. I also wrote up a blog post about the structure of the Washington state legislature, which began its sixty day session for 2026 earlier this week. https://www.brethorsting.com/blog/2026/01/how-the-washington-state-legislature-works/ https://www.brethorsting.com/blog/2026/01/how-the-washington...
  • janpmz 9mo ago
    Opening the window works well for me.
  • Fazebooking 9mo ago
    Interesting, i would not expect this at all tbh. I open the window. Any chance you can share a picture of the size of your room and amount of plants and type of plants? I have a co2 device which gets red and this triggers the window opening for me asap
  • sjw987 9mo ago
    Interesting. What hardware do you use to measure this? I have a Netatmo home device that measures PPM and have been observing the trend lines throughout the day. At some points my flat gets up to about 1400, which the device says is bad, and sometimes it goes down as low as 500. I've noticed a pattern but can't quite connect that pattern to my activity or the surroundings. It starts going up around 4pm, which could be homewards-bound vehicles, but it seems to trend even on weekends when there is lower traffic. Maybe I start breathing differently at these times. I'm quite interested in getting to the bottom of it. Unfortunately I'm west facing so plant use is quite limited. What is the atmospheric ambient CO2 level? Is that variable based on location? I've learnt a few things: - I had my sensor on my work desk which meant the CO2 pooled, and was increased dramatically by my breathing almost directly onto it. Moved the sensor at least 1.5m - I had the sensor quite low down, where CO2 pools (being heavier), so moved the sensor to eye level - CO2 seemed to increase when cooking (same room), so while cooking I open the windows and let the warmth flow out of the building
• q-base 9mo ago
  I have started exploring Seneca/stoicism again. Prompted partly by a recent submission here, partly by personal reasons. Instead of consuming other peoples interpretation of stoicism I decided to go as close to the source as feasible for me. I have read Letters from a stoic a number of times before and my copy is filled with highlights, but this time I think I will try to limit myself to one or two letters a day and then really think about them properly. The first one really hit me hard and prompted me to write out my own thoughts (https://jesperreiche.com/seneca-letter-2/ https://jesperreiche.com/seneca-letter-2/) whether I will keep doing that I am a little unsure. It feels on the border of how personal I want to be/share on my blog. P.S. I can see the irony in writing about me going to the source instead of consuming other peoples interpretation and then sharing a link to my own interpretation :)
  • dapperdrake 9mo ago
    Even Seneca and Marcus Aurelius wrote about it. No sweat. Nassim Nicholas Taleb has a few contemporary takes and tries to connect statistics into stoicism.
  • sherlock_h 9mo ago
    Thank you for sharing. The choices piece hit home for me. Forwarded this to friends.
    • q-base 9mo ago
      Thank you very much.
  • RagnarD 9mo ago
    Based on some reading in a study group using both the Hays and Waterfield translations, I'd definitely recommend Waterfield over Hays.
    • q-base 9mo ago
      Interesting. I have read quite a few translations of Meditations by Marcus Aurelius and also found a clear favorite. But I am actually not even sure which translation of Letters from a Stoic my current book is. I have just always liked the language in it.
• rcarmo 9mo ago
  I am deep down into the rabbit hole of assessing various open source projects to build a custom trackball with a 52mm billiard ball (appropriately, it’s the 8-ball).
• ainiriand 9mo ago
  [flagged]
  • jvm___ 9mo ago
    "I always wonder why birds stay in the same place when they can fly anywhere on the earth. Then I ask myself the same question." - Harun Yahya
    • satvikpendem 9mo ago
      This was always a flawed quote because even before such a realization, people still did novel things (and literally flew to new places), much the same as birds. And the answer is still the same for birds and humans, the constraint of resources. If you have enough then by all means, fly.
      • cess11 9mo ago
        The point is for you to take a look at yourself and how you are currently spending your time, from the assumption that you could do something different.
        • satvikpendem 9mo ago
          People already do that. It also doesn't relate to the person you replied to, as I said in another comment, it's about an external source imprisoning you, not you imprisoning yourself.
          • conductr 9mo ago
            It’s more so a realization that you have agency, choice, but have decided perhaps without much intention or thought, to remain in your status quo. I don’t think it’s literally about flying. It’s about ignorantly complying to a status quo and how that itself is a decision even if you’ve made it unintentionally. Again I think the resources it takes to fly being a limitation are not what it’s referring to. A bird just lives its life in an area and never really assesses if a flight to a far off land is possible, if resources would support their journey, or any of that. They just do what all the other birds are doing or of course what their instincts tell them to. We’ve ignored migration and birds that do travel great distances as not a part of this as it’s not a literal statement about flying!
• smilbandit 9mo ago
  setup a desktop with n8n, ollama, open webui, comfyui, and aider. work is dragging it's feet on AI orchestration and workflow tooling so figured I learn it a bit to get ahead of things. just need some personal projects that are interesting enough that I'll pour time into them.
• rdiddly 9mo ago
  Welp I'm going through my folder of notes on publishing type stuff - site generators, hosting providers, headless CMSs, all-in-one platforms, etc. First time seeing it all at the same time and being able to compare features/workflows etc.
• datahack 9mo ago
  I’m learning about the “era of the nations” thinking from Hungary’s Balázs Orbán, via an episode of a podcast called the Winston Marshall show. YouTube just randomly suggested it to me. I just rebuild a speed queen dryer that broke with spare parts from Amazon, which revealed a remarkably simplistic engineering. Very surprised by how simplistic the mechanism was. It’s incredible how over engineered most laundry systems have become. Also spent some time digging into the integrations between Tesla FSD and rideshare services today. It’s remarkable how much progress has happened.
  • laci37 9mo ago
    Be careful what you believe from Balázs Orbán, as a Hungarian I can say he is mostly concerned to come up with a ideology to explain whatever Viktor Orbán is doing and not building a consistent model of world politics that drives actions.
    • datahack 9mo ago
      Indeed. I think that’s an astute assessment. I listen to a massive variety of perspectives, and as a NATO member I think what they have to say is worth hearing at least. Thanks for your comment — appreciate it.
  • e40 9mo ago
    Still using my Speed Queen washer and dryer. Bought 30 years ago. You’ve given me confidence to try to fix it when it stops working. Thanks!
    • deleted 9mo ago
      [deleted]
    • datahack 9mo ago
      Absolutely. Ours are 10 years old, and the bearings wore out (well they were squeaking!) on the drum. It took 20 minutes and a ratchet set to repair — couldn’t be easier. It’s the best appliance we have ever owned. Can’t speak more highly of the company. Definitely the best on the market. 30 years is impressive!
• 4mitkumar 9mo ago
  I found just now that my telecom operator - Airtel - randomly subscribed me for OTT services and charged me for it. But upon calling them and contesting, they just asked if I want to unsubscribe and then reverted the charges. No threats, pleading, or back-and-forth involved from either side. Mildly surreal. I wonder that's a new corporate strategy - charge randomly till someone goes through the pain of IVR and spends 15 mins with support. Must generate quite an upside for them if it is indeed a strategy.
  • devsda 9mo ago
    > Must generate quite an upside for them if it is indeed a strategy. This is the same Airtel that auto opened payments bank accounts without customer consent or knowledge while getting a sim card. They even got cash deposited into those accounts from the govt direct benefit schemes while keeping their customers in the dark. I'm sure its completely "accidental" and they'll have more of these glitches and mistakes in the future.
    • e40 9mo ago
      What country is this? That’s nuts!
• torben-friis 9mo ago
  I got a handheld emulator console as a Christmas gift. Configuring shaders that emulate crt TVs, I realized I had no mental model of how those TVs worked at all. I’m used to “pixels are three little lights combining rgb colors”, which doesn’t work here, so I went on a rabbit hole and let me tell you, analog TVs are extremely impressive tech. Getting an electron beam to hit a glass, making the chemicals on it spark, covering it in a “reading motion” for hundreds of lines, and doing that 60 times a second! And the beam is oriented by just careful usage of magnets. It sounds super sci-fi for an already dead, 130 years old technology. I also learned that my childhood was a lie. Turns out that the logic in consoles of the time was tied to the speed of the beam, which in turn used alternating current’s frequency as a clock. This means that since European current changes 50 times per second rather than 60, our games played in slowmo (about 0.8x). American sonic was so much faster! And the music was so much more upbeat!
  • whycome 9mo ago
    What other sci fi technology is being lost on us now? I always that the complexity of the local-battery-powered copper-cable telephone exchange system was bonkers. It was the backbone for all our landline calls.
    • Findecanor 9mo ago
      The telephone system also powered the phone, and often worked when the power grid did not.
  • schnitzelstoat 9mo ago
    > Turns out that the logic in consoles of the time was tied to the speed of the beam, which in turn used alternating current’s frequency as a clock. This means that since European current changes 50 times per second rather than 60, our games played in slowmo (about 0.8x). American sonic was so much faster! And the music was so much more upbeat! Wasn't this the reason behind different versions of the game for PAL and NTSC etc.? So I imagine the games would play quite similarly, just with a lower refresh rate in Europe?
• jongjong 9mo ago
  I found out more ways in which our entire socio-economic system is a scam. I literally learn something new about this every day. I need my Universal Basic Income now! Help.
• InfinityByTen 9mo ago
  Not strictly today. But I discovered that there exists a special class of algorithms that are designed with the use case of streaming data to your program. I just used one to get a uniformly distributed sample from a 10Gb log file. I knew this was something coding interviews delved into: "if it doesn't fit in memory", but until like yesterday I never went down the rabbit hole. I have to say it was a nifty trick.
  • dapperdrake 9mo ago
    https://adamdrake.com/command-line-tools-can-be-235x-faster-than-your-hadoop-cluster.html https://adamdrake.com/command-line-tools-can-be-235x-faster-...
• endymion-light 9mo ago
  I've been working on a litle raspberry pi pico project with kafka. As someone that used to have an Arduino uno, it made me genuinely shocked at how small controllers have gotten and they're massive capabilities
• omnicognate 9mo ago
  I learned that the large tree near where I live in London that has visibly grown in the last year is a Coast Redwood (a.k.a. California Redwood, a.k.a. Sequoia) and that there are half a million of them in the UK. Loving this post.
• dandelionv1bes 9mo ago
  I’ve been slowing crunching through Math for Deep Learning, so spent a fair amount of time looking at Hessian matrices + second order optimisation. I’ve been slowly reading this book for a year, so stopping to do most of the math by hand each time. One chapter to go! Then I was sick all last week, so ended up down a rabbit hole about the current card collecting bubble (right word?). Super interesting.
  • dapperdrake 9mo ago
    Where do Hessians come into play for neural networks? It seems like they just use auto-diff to compute the Jacobian or the gradient for backpropagation. The theoretical results sometime look at the second order derivative.
• mitjam 9mo ago
  I'm exploring adding a firewall to my home network to detect if apps are using my network as residential proxy. My daughter likes to install random games on iOS that have been advertised to her on other apps, and I wonder if some of those work as residential proxy behind the scenes.
  • sdoering 9mo ago
    I once installed a private DNS with advertising block lists on a home network level. My SO was not amused, as her Android based games with "watch an advertisement for ingame credits" now did not work anymore. Nowadays only the TV sets and my own devices are set to use this (pihole) DNS server. So that I can at least watch Disney+ without ads.
    • mitjam 9mo ago
      Yes, I already run Pi-hole on a Raspberry Pi at home, but I had to disable it due to complaints.
• sjw987 9mo ago
  I've been exploring kefir. I'm looking at finding some live grains to boost the store bought variety here (10-20 varieties) up to 50-60 varieties or so, like the kefir in Eastern Europe / Russia. The store bought stuff in my country (UK) is more like a diluted, gimmicky thing. However, I believe the strains of bacteria they do include are some of the more influential ones. I think it would just be interesting to expand the scope a bit. This came from reading about the gut microbiome, which was spun off from reading a book about Ultra Processed Foods (Ultra-Processed People). I've been trying to remove UPF foods from my daily consumption, trying to lower the ratio of them I eat (the average is supposedly 60% for adults in my country), since the academic link between UPF and dementia is quite strong now. It's quite shocking to see just how much of a typical supermarket/food store is UPF, and where many of the emulsifiers and preservatives come from.
  • cik 9mo ago
    I went down a similar path, sans book. I opted to remove processed foods from my diet in its entirety - to be clear, I consider neither oil, nor vinegar to be processed. This has resulted in basically the only processed food in my life now being soy sauce. The hard reality is that food, which I already enjoyed, tastes significantly better. Similarly, when I fall off the wagon and have some UPF (crips).. it just tastes flat. Highly recommended, even without the health benefits, frankly.
    • sjw987 9mo ago
      That's quite hardcore. Well done. I've noticed the same flatness you're describing with a similar product. The other week I had two items spaced across different meals. I'm still permitting bread as long as it's real or homemade (4 ingredients max, hard after 2/3 days), which was the first, and then later I had "made-in-store" chips with the a bunch of UPF and spices (preserved). After about 2 weeks of minimising UPF, the bread tasted much better than it usually would, even on its own. Then not only did the chips taste flat like you've experienced, but they didn't taste good, and I felt I could almost tell what they'd added to try and get you to finish them. I find it quite insidious how much food is falsely branded as healthy ("Just Natural" snack bars) or fresh. Not just items that are dressed up as if they are made fresh in-store, but foods proudly showcasing claims about things added, or nothing bad being added, only to be invalidated by checking the ingredients on the back. The extra difficulty to eat was a pretty big takeaway for me from that book. Imagining most processed food as having been broken down and reformed, the breaking of the food matrix, the sort of pre-digestion that stops my body doing that instead, the hurrying of the eating process to get more in before the body works out its full, have all been useful for me to slow down my eating and avoid this stuff in general. I have noticed that my scattergun approach of avoiding stuff that's been transported long distance and overly branded (judged by packaging in both cases), has made supermarket trips very quick and simple. 80% + of the big stores must just be rubbish. It's led to me doing most of my shopping at local markets, where things are loosely packaged in paper. The book > avoiding branded packaging got me down the road of avoiding plastic wrapped consumables wherever possible, because plastic leeching is also a concern. The only disadvantage is that my food environment has shrunk a lot, and as an endurance runner it's made it quite hard sometimes to get enough energy in. For that reason I don't think I can drop pasta and bread entirely.
• aqula 9mo ago
  Talking to insurance agents I realised, they don't bother to read the policy documents and have a very superficial knowledge of the policies they are selling. You can glean lot more information feeding the docs to an LLM and asking questions.
  • dapperdrake 9mo ago
    How often do they sell to someone interested in the details?
• auselen 9mo ago
  Incorporated a cli AI to my daily work. Just impressive, was working on some networking code, I could think of 100 ways to stress test it, then I ‘prompted’? AI to implement those ideas, found many issues, hangs. Shared agent those, asked it to add prints, retest, improve my implementation. Now I got a good solution in a day. Previously this would take a week at least with my worrying about all the things I could test, improve…
• kulor 9mo ago
  We've recently been without water in the UK for 5 days (water company failings). I've come to appreciate mains water and how its utility is hard felt by omission for toilets, washing & cleaning. Immensely grateful to have it back now.
  • dapperdrake 9mo ago
    Good infrastructure is worth working towards.
• janpmz 9mo ago
  I had some eye strain and think it is because my eye muscles are overused. A doctor told me the muscles in the eye are flat, like tapes, and that I would not feel a muscle ache. I noticed the strain when I focus on different points quickly. I started to pay attention to how I move my eyes and realized I read a lot of text while scrolling, for example reading X posts on mobile while scanning the text at the same time. Yesterday I was reminded of “Rapid Serial Visual Presentation” for speed reading, where the words are presented so you do not have to move your eyes. I am currently trying it out with a Chrome extension called SwiftRead. I set the text size so it fits into my fovea area. I used a fovea detector website I saw on HN a while ago: https://www.shadertoy.com/view/4dsXzM https://www.shadertoy.com/view/4dsXzM (make the pattern full screen, then you can see the size of your fovea). I also learned that I can reduce some of the strain by moving my head more toward the things I am looking at on the screen.
  • vlod 9mo ago
    Maybe go outside for a walk and look at nature? give your eyes a rest. (Assuming your working too hard). Really don't want to f.up your eyes!
  • jasfi 9mo ago
    Try Lutein (20mg).
  • walterbell 9mo ago
    Search "ciliary spasm".
• Ronsenshi 9mo ago
  I've explored various VPN settings/configurations/protocols to see what works best with my ISP that tends to throttle traffic to my work VPN. Some things work OK, but still not as good as commercial VPN providers.
• nottorp 9mo ago
  My day just started but I found out that when I type a message in a MS Teams chat open in Chrome in Mac OS there are three separate independent spell checkers fighting to twist my meaning. Sorry, no positive news yet. But it's only noon.
  • elric 9mo ago
    I too am actively fighting the Teams spellcheck and autocorrect garbage. I can't seem to turn it off permanently, every time I log in again it switches itself on again. It refuses to understand that I speak multiple languages, and that no, I do not ever want this shitty tool to change words as I'm typing. Another classical case of MS not understanding consent, I guess?
    • nottorp 9mo ago
      > Another classical case of MS not understanding consent, I guess? Not sure if Apple is better in this respect, with the "helpers" at least. For MS, this job only switched to MS from Google less than a month ago but I could whine about new annoyances for 4-5 more paragraphs. And before using it, I thought Google is too enterprise oriented and getting in the way of getting work done. Compared to Slack. But not compared to MS.
      • nottorp 9mo ago
        > Not sure if Apple is better in this respect, with the "helpers" at least. Since I posted that, I got a popup trying to trick me into upgrading to Mac OS 26 again. I thought I had the workaround to get rid of the idiotic popups applied, had to apply it again.
• cess11 9mo ago
  An intern had trouble with an outdated exercise in Elixir that use an old version of an Erlang dependency, so we got to figure out how to depend on a local copy, dig into the Erlang code and do a little hack to make it work. Basically it relied on a checksum algorithm that was previously in yet another external library but was now in the standard library so that call needed to be updated and variables carrying around the old external library had to be underscored out. It was a good lesson in traversing error messages and going from an angry VM step by step to a clean success. Not to hairy for a junior to understand when explained, and also not too time consuming to burn out interest, while still a bit of a challenge.
• Frotag 9mo ago
  Set up motion detection on my home security camera. Caught four stray cats playing in the driveway at like 2am. Kind of annoying that the detection is unconditionally "object-based" (ANN is used to filter false positives like lighting changes). Also been thinking about game ideas for a while. Finally settled on an open world RPG where you control multiple (>10?) characters. Core gameplay loop will be configuring / optimizing schedules (farming materials, grinding xp, etc) and watching damage / currency numbers go big. Though if I'm being honest, I just want an excuse to build something that involves a node-based UI. So even if I don't finish, I'll have at least scratched that itch.
  • cylentwolf 9mo ago
    I finally kicked off my browser based game with the help of codex cli this year. It has been like having a junior developer that takes decent direction. There have been some missteps but "we" have made a lot more progress on it than I had the last three years. And it let's me spend my time optimizing the things I like doing.
• tokioyoyo 9mo ago
  End of the day for me, as usual trying to walk around as much as I can with my partner, with the hopes to stumble upon stuff. Just found a great pasta spot, followed by a watering hole. Grateful to live in this city! Hope you guys are having a good one as well.
• _bittere 9mo ago
  Exams in a week! I found out that it's actually pretty easy to fill an entire 150 page notebook with rough work in <2 days.
• nickjj 9mo ago
  On the command line the `strings` command will list out printable characters in a file (including compiled binaries). I don't do any systems level programming but found myself down a small rabbit hole of learning about reverse engineering tools. https://github.com/NationalSecurityAgency/ghidra https://github.com/NationalSecurityAgency/ghidra is an open source one. It will show you the assembly code, does its best at giving you a C representation of that code and lets you interactively rename variables and symbols to make it more human readable.
• Rygian 9mo ago
  Plumbing together stuff so that the files from a service that can only push to sftp server end up delivered in a Dropbox folder.
• TheAceOfHearts 9mo ago
  I learned about this book / concept: Tools for Conviviality [0]: > Illich proposes the idea of a 'convivial tool', one which allows its user to exercise their human autonomy and creativity. This came up as I was reading about UX / UI design and trying to understand the fundamentals of how to increase human autonomy. Although my key takeaway is a bit shallow at the moment, mostly focused on applying this map towards existing tools in order to try to identify ways in which they can be modified and improved to maximize autonomy. The Wikipedia article also references this concept of radical monopoly: > Tools for Conviviality also introduced Illich's idea of a 'radical monopoly', which describes a technology or service which becomes so exceptionally dominant that even with multiple providers, its users are excluded from society without access to the product. Which has extended to me wondering about what the world will look like as people are increasingly pushed to use LLMs or other AI tools in more and more interactions. And in particular, what actions can or should be taken to maximize human well-being. [0] https://en.wikipedia.org/wiki/Tools_for_Conviviality https://en.wikipedia.org/wiki/Tools_for_Conviviality
• artemavv 9mo ago
  I now know that in Italian I should say 'mi piacciono' to convey my liking of things (plural), e.g "mi piacciono i libri" means "I like books", as opposed to singular 'mi piace il libro' (I like the book). When I refer to likes of multiple people, e.g. "we like this book", I should use "ci piace il libro". Plural people speaking about liking plural books would be "ci piacciono i libri". One of my goals for 2026 is to reach level B1 in Italian language.
  • kubanczyk 9mo ago
    Yeah, somehow Latin-based languages prefer the opposite direction of the activity of liking, so it's better to formulate it initially as: this book appeals to me, those books appeal to him, ... Opposite as in: "You borrow me X. I owe you X."
• kenrick95 9mo ago
  Today I learned about the difference betweeen "preconnect" and "dns-prefetch": https://web.dev/articles/preconnect-and-dns-prefetch https://web.dev/articles/preconnect-and-dns-prefetch I have thought that they were the same...
  • 1vuio0pswjnm7 9mo ago
    In terms of similarities, they are both attempts to improve "perceived page speed" that actually decrease page speed or encourgae practices that decrease page speed For example, injecting ads and tracking into web pages via connections to third party servers. This is not a practice that increases page speed If I am not mistaken, "web.dev" is operated by an ad services company As a web user, not a "web developer", I use clients that do not "support" these "features". For me, YMMV, this makes information retrieval from the www much faster and more resource-efficient than if I tried to use clients that do, such as the so-called "modern" browser There are also privacy and security implications associated with choice of client, however these are not the primary reason I choose clients other than the so-called "modern" browser
• Havoc 9mo ago
  Learning how much of a hassle moving house is. Will take me forever to get addresses on all service providers etc moved Also learning more about mold and dehumidifiers
• raw_anon_1111 9mo ago
  I live in a condo complex in Florida where the onsite staff at the front desk know me well and they are mostly bilingual and know I’m learning Spanish. I went up to ask then something and jokingly said “no hablo inglés, ¿Hablas español?” and I was able to carry on a more or less complete conversation with them in Spanish and ask for what I needed without pre rehearsing lines for the first time. So I found out within the past 24 hours that I can carry on a simple conversation in “survival Spanish”
  • franktankbank 9mo ago
    Thats awesome. I remember when I finally learned numbers well enough to understand the cashier when I was abroad.
  • Falimonda 9mo ago
    Now you can say "Me defiendo" when asked how much Spanish you speak :)
• tikotus 9mo ago
  I'm doing PHP for the first time in years. I needed a function that returns the date of last week's Monday. Turns out PHP has a funky date querying language. I can just do: $today->modify('monday last week'). Makes me happy.
  • is_true 9mo ago
    PHP is always there for you.
  • spiderfarmer 9mo ago
    PHP is just awesome.
    • tikotus 9mo ago
      Right? I don't do much web dev, but now that I do, I don't see why I'd use anything else.
  • philo23 9mo ago
    The relative date formats are super useful. It can get a bit confusing when there's timezones involved though. https://www.php.net/manual/en/datetime.formats.php#datetime.formats.relative https://www.php.net/manual/en/datetime.formats.php#datetime....
  • Aachen 9mo ago
    [It has been (1) days since the last time that I needed strtotime] Don't know how to do this without PHP, so I actually use it on the shell inline between a bunch of Bash. I assume that's the same function with new syntactic sugar
  • dapperdrake 9mo ago
    Is there a way to cache the parsed query "monday last week" like regexes can be compiled?
• frm88 9mo ago
  I found out that it is nearly impossible in Europe to buy a 10l enamelled bucket with a lid. I need one for my organic waste, since I found that both metal and plastic ones tend to keep the smell despite cleaning them weekly.
  • zote 9mo ago
    Is it easier for other sizes, or equally as difficult.
    • frm88 9mo ago
      Equally as difficult, except for very small ones that go on a table - these are more of a decorative item than a bucket. Enamel in general has gotten somewhat rare. I found one (!) factory in Germany that does these. One. Edit: I just checked:10l is max. There are no bigger ones and now I wonder why :)
      • loopback_device 9mo ago
        In case you haven't found it yet; have a look on https://emaille24.de/ https://emaille24.de/ - they do have buckets up to 12l (with lids).
        • frm88 9mo ago
          Thanks to your and your sibling commentor's replies I will soon be the proud owner of a lidded, enamelled bucket :)
      • svilen_dobrev 9mo ago
        searching for "емайлирани съдове" in bulgarian.. https://elcishop.com/product-category/емайлирани-съдове/ https://elcishop.com/product-category/емайлирани-съдове/ https://www.mira-n.net/emailirani_rom_black.html https://www.mira-n.net/emailirani_rom_black.html https://zana-bg.com/kuhnya/sdove-za-gotvene/emajlirani/kupro-emayl-balgarski/kazani https://zana-bg.com/kuhnya/sdove-za-gotvene/emajlirani/kupro... so 16L - and 50L - pots do exist.. but you have to find some importer around you. Manufacturers Seems russian, romanian, bulgarian..
• stonecharioteer 9mo ago
  That my colleagues like me despite me being a bad fit for the role here at my company. I feel good, I really like them here at Chatwoot but I'm not who they need right now. It's my last week here, and it's only been 3.5 months but they feel like family. It's sad that I had to quit but I'll miss these good people.
• m9a4r3a3n 9mo ago
  Learned to spin dopa star from cyrus, who traveled to spend some time with his parents, who work at a college near my village. he gifted his dopa star to us.
• mindcrime 9mo ago
  It wasn't literally today, but about 2 days ago I discovered the -H (and --host) arguments to systemctl. These allow you to pass a hostname of a remote server, so you can use systemctl to manage systemd services on remote machines. It layers over ssh, so the cleanest way to do it is to have passwordless ssh with certificates set up to the remote host. If you do, running systemctl commands remotely is totally seamless. https://www.tecmint.com/control-systemd-services-on-remote-linux-server/ https://www.tecmint.com/control-systemd-services-on-remote-l...
  • yjftsjthsd-h 9mo ago
    What's the advantage to systemctl --host foo status httpd.service vs ssh -t foo systemctl status httpd.service ?
    • Aachen 9mo ago
      Was wondering the same. "Do one thing and do it well" philosophy... If I want to run remote commands, I know how to do that already (namely, as you've shown), why learn to use a new tool for it? It's like these options to tar for compression: if I want to have a gzipped tar I'll run the tar c /sdcard output through |gzip thank you very much! (and drop in zstd instead)
    • mindcrime 9mo ago
      > What's the advantage to ... For me personally, I'd say "not much". I'm used to using the latter form, and it's fine. But I will say that now that I know about this, I see using it in scenarios where I'm running a lot of systemctl commands over and over again in close proximity and have the "muscle memory" of typing "systemctl" more in mind. For example, when working with a new service that isn't quite working right yet, and doing many iterations of: $> systemctl start something.service $> systemctl status something.service $> journalctl -xeu something.service $> emacs whatever $> systemctl start something.service $> systemctl status something.service lather, rinse, repeat Especially if I'm testing on my laptop AND a remote deployment, I think it's easier from a cognitive viewpoint to always "think systemctl" instead of having to "think systemctl" sometimes and "think ssh systemctl" in others. To be fair though, it's all a pretty minor point. But I do think it's cool that systemctl has that option. shrug
• deanebarker 9mo ago
  Related to this, I spent three years looking up 1,000 things and writing about them. https://deanebarker.net/huh/ https://deanebarker.net/huh/
  • djeastm 9mo ago
    Neat. You're a very curious person (in the best sense).
• grigio 9mo ago
  nixos docker container where a non-root user can install packages
• heyyfurqan 9mo ago
  I found out I turned 24 today :)
  • schaum 9mo ago
    Happy Birthday, usually I don't write such things so feel honoured stranger!
  • blahaj 9mo ago
    Happy Birthday
• tomaytotomato 9mo ago
  I am exploring various levels of prompting in Github Copilot at Org, Repo and Personal level. Think of it as an exploration manual.
• fifticon 9mo ago
  currently learning 3d "solid" design with blender for 3dprinter. I am aware blender is not the fit a cad app would be (), but it 'works' if you are careful what you do (I am not). This morning I had to clean the poor 3dprinter of a spaghetti-gone-wrong accident, because my hubris-3d-design submitted last night was not as clever as I naively thought. () the advantage of using blender is that, as a byproduct I will eventually have learned blender..
• alance 9mo ago
  A talk about creating from Ethan Hawke called "Give yourself permission to be creative" https://www.youtube.com/watch?v=WRS9Gek4V5Q https://www.youtube.com/watch?v=WRS9Gek4V5Q But my takeaway was more like "Give yourself permission to be bad" Felt good to be reminded that if you want to make interesting things, it's ok to flail around. It'll feel foolish and that's completely ok, perhaps necessary.
• magnetometer 9mo ago
  The company I work for is rather slow in adopting AI-based tooling. Recently, I discovered that our Databricks instance exposes an API endpoint that provides access to a wide range of LLMs. So I built a small local Streamlit-based chat app that lets me switch models within a conversation, add or remove files from the context, and clean up dead ends. It actually works much better than the Microsoft Copilot app we’re officially supposed to use.
• 7373737373 9mo ago
  There does not yet exist a (strong) chess engine that tries to force its opponent to win against it (who is assumed to have the same objective)
  • Aachen 9mo ago
    You might enjoy hatetris (tetris, not chess, but it optimises against you in a way that felt similar)
• ojr 9mo ago
  I found out that Claude Code and OpenCode doesn't do vector search and embeddings but relies on grep to power their agents. Most people are satisfied with this even though I think vector search approach is way better and saves on tokens.
  • kroaton 9mo ago
    I remember thinking the same thing and this articles goes over most of the arguments here - https://milvus.io/blog/why-im-against-claude-codes-grep-only-retrieval-it-just-burns-too-many-tokens.md https://milvus.io/blog/why-im-against-claude-codes-grep-only... When it came out and I think it was Boris from Anthropic that said they experimented a lot with Vector Search and grep just worked better. You can try it out using the Claude-Context MCP - https://github.com/zilliztech/claude-context https://github.com/zilliztech/claude-context
    • ojr 9mo ago
      I built my own ai coding agent and do vector search and embeddings locally https://slidebits.com/isogen https://slidebits.com/isogen
• b3lvedere 9mo ago
  I found out and explored the Relax-and-Recover backup software ( https://relax-and-recover.org/ https://relax-and-recover.org/ ) that makes a bootable rescue ISO and a nice backup of my 'new' Debian 13 box.
• publicdebates 9mo ago
  That someone created a new country recently called Verdis, with a population of about 400. I was planning a hostile takeover, figuring how hard could it be with these guys, until I found out Croatia already did that.
  • dizhn 9mo ago
    How hard could it be to take over Croatia? You should follow your dreams.
• MiddleEndian 9mo ago
  Why Bluetooth is detecting peripherals but won't connect to them on the new PC I built. Getting an antenna today but only 50% sure this will fix the issue.
  • MiddleEndian 9mo ago
    lol I misread this as "What will you find out or explore today?" cuz it was pretty early in the morning. But it was the antenna.
• shminge 9mo ago
  I'm sick of using React for personal projects so I've been building a lightweight, functional, and minimalistic reactive web framework. Turns out there are a lot of decisions that go into something like this, it truly is an iceberg of complexity. It creates plenty of enjoyable problems to think about though
• joncrane 9mo ago
  I cannot add git Bash as an option for a terminal in VSCode. I had it installed via PortableGit and the chat told me it doesn't work unless it's in a standard location. I installed in a standard location and still no dice.
• literallyroy 9mo ago
  Duckdb can read in json, so you can dump kafka messages into a file and filter with SQL
  • elric 9mo ago
    DuckDB is such a great tool. Met one of the authors at a conference last year, very knowledgeable chap. Deeply impressed.
• yodsanklai 9mo ago
  Learned some turn around licks from Freddie King's side tracked, and played them over and over on a blues backing track. I've been playing guitar for a long time, but rhythm wise, it took time to click. I'm much better at feeling the pulse, and starting and ending licks at the right time in the bar.
  • hidd 9mo ago
    Never expected to see Freddie King mentioned on HN! What a great performer.
• DonHopkins 9mo ago
  Where and how Cursor store all its workspaces, chats, prompts, thoughts, context, completions, tool calls, searches, schemas, and images: "Cursor Mirror" Anthropic Skill and Python Sister Script: https://news.ycombinator.com/item?id=46629604 https://news.ycombinator.com/item?id=46629604 cursor-mirror skill: https://github.com/SimHacker/moollm/tree/main/skills/cursor-mirror https://github.com/SimHacker/moollm/tree/main/skills/cursor-... cursor_mirror.py script: https://github.com/SimHacker/moollm/blob/main/skills/cursor-mirror/cursor_mirror.py https://github.com/SimHacker/moollm/blob/main/skills/cursor-... DATA-SCHEMAS.yml schema map: https://github.com/SimHacker/moollm/blob/main/skills/cursor-mirror/DATA-SCHEMAS.yml https://github.com/SimHacker/moollm/blob/main/skills/cursor-... PR-CURSOR-MIRROR-GENESIS.md pr description: https://github.com/SimHacker/moollm/blob/main/designs/PR-CURSOR-MIRROR-GENESIS.md https://github.com/SimHacker/moollm/blob/main/designs/PR-CUR... cursor-chat-reflection.md session log: https://github.com/SimHacker/moollm/blob/main/examples/adventure-4/characters/real-people/don-hopkins/sessions/cursor-chat-reflection.md https://github.com/SimHacker/moollm/blob/main/examples/adven... I-BEAM-CHARACTER.yml a spirit familiar embodying Cursor's soul: https://github.com/SimHacker/moollm/blob/main/skills/cursor-mirror/I-BEAM-CHARACTER.yml https://github.com/SimHacker/moollm/blob/main/skills/cursor-... IMAGE-GALLERY.md analysis of images dropped into Cursor chats, their context, and meaning: https://github.com/SimHacker/moollm/blob/main/skills/cursor-mirror/IMAGE-GALLERY.md https://github.com/SimHacker/moollm/blob/main/skills/cursor-... >Note: This gallery contains descriptions, analysis, and context — not the actual images. The images live in Cursor's workspace cache. The point: cursor-mirror can find them, the Read tool can see them, and I-Beam can narrate their significance within the conversation where they appeared. Image archaeology!
• gethly 9mo ago
  I am working on layouting library(inspired by the concepts behind Clay). There are two modes in which these things operate - immediate mode where you recreate everything anew for every frame, or retained mode where you create everything only once and then mutate the existing state for every frame and render only the differences. HTML DOM uses retained model as it would be unimaginable to completely throw out the entire DOM and rebuild it anew with every frame. But React, Vue and other libraries use immediate mode to communicate with HTML DOM. They might internally have retained mode, but in the end they only perform mutations based on their internal differences. So the whole web ui is layer upon layer of immediate, retained and hybrid modes all talking to each other. Now imagine how much wasted resources all of this layering implies :) Another interesting fact is that when you have opacity or translucency in web ui, the browser render the background elements off canvas and uses it as background for the element with the opacity in order to avoid issues with various elements seeping through in many unexpected ways. tl;dr this topic has been thoroughly discussed in here https://www.youtube.com/watch?v=XYFBOIr6n_s https://www.youtube.com/watch?v=XYFBOIr6n_s
• Balgair 9mo ago
  Finished "For Whom the Bell Tolls" by Hemmingway Wow, so powerful. So real. I can see why it won the accolades at the time and why it stays. The ending. You could see it a mile away, but it was so hurtful still. Would love to see another adaptation made of it, especially nowadays. Maybe a really long movie, 2 parts?
  • oguz-ismail2 9mo ago
    Currently at page 127. Wish I didn't read this comment...
    • Balgair 9mo ago
      sorry!
  • conductr 9mo ago
    Was a Hemmingway fan as a middle-schooler but never read this one. Your comment sold me on it! Thanks!!
• meken 9mo ago
  I found out that Eastern Europe includes the Baltic States (northern) and the Balkans (southern). I learned this because I play a daily game called FoodGuessr, where you have to guess which country a food dish is from. I tend to struggle in Eastern Europe.
• peterspath 9mo ago
  Playing around with Dictionary Services[1] (an api in iOS and macOS). Figuring out how to create my own dictionary with Dictionary Development Kit to create a dictionary where people can find definitions of terms. Also let the system learn names of products and services, so the system can do better autocorrect. 1. https://developer.apple.com/documentation/coreservices/dictionary_services https://developer.apple.com/documentation/coreservices/dicti...
• mohu21 9mo ago
  As a student in embedded and systems programming that never did much in high level langs, i found out how fun html+js can be.
  • dorfsmay 9mo ago
    The Web APIs is the most ubiquitous "computer" that doesn't really exist!
  • eimrine 9mo ago
    I love how you do not mention css, this is so not fun.
• dorfsmay 9mo ago
  mDNS In the past few weeks I have been exploring mDNS and IPv6. Your router doesn't provide local DNS? Not an issue, add .local to the hostnames and boom, everything works. For example, run `python3 -m http.server` on your laptop, then open the browser on your phone and browse yourlaptopname.local:8000 ! There's more, services are advertised on mDNS, that's how your printer magically appears on your computers and phones.
• jtr1 9mo ago
  I spent some very enjoyable time browsing courses and tutorials in the Santa Fe Institute’s complexity explorer![1] I wish I had encountered complexity science earlier in life. It touches on so many of the questions that have sparked my imagination over the years, I’m so pleased to find such an accessible introduction.
• Jeff9James 9mo ago
  you can now use windows apps on linux without emulation: winehq.org
• Jeff9James 9mo ago
  tweeks.io let's you edit any website.
• clarencehoward 9mo ago
  I learned about fan-out, and just how the average size of groups in messaging servers affects their load. It is pretty basic stuff I guess but not something you think about unless that is your jam. I was stress testing a server I made and noticed a discrepancy between two tests. In on test 15 virtual users could send 450msg/sec (not realistic I know) for about 6750 incoming messages per second. In another, 1000 users sending a message about every two seconds was the limit, about 500msg/sec incoming. Took me a little bit to figure out why, the outgoing messages between the tests were wildly different. In the smaller user tests the groups were about 3 on average, in the larger one they were 30. Group size is effectively a multiplier on incoming msg requests so when looking at the total traffic it was much closer between the two tests 15k and 20k.
• nishanseal 9mo ago
  Messed with Remix for the first time after seeing Shopify's Hydrogen sites. Previously only used Next.js.
• cafard 9mo ago
  I found out that, as I thought, I'd probably rather have read Frederick Law Olmsted on his travels in the antebellum South than Tony Horwitz (Spying on the South) on Olmsted on etc. I found out that falling out of bed is not just for children, and that bringing an adult's body mass is not an improvement. I don't suppose that I'd fallen out of bed since LBJ was president. I found out that YouTube has some interesting notions about me: the opening ad on a rather bland video was anything but bland, astonishing even a jaded old man.
• skeltoac 9mo ago
  The first thing your agent needs to know every time it wakes up is where it is. “This codebase is health care SaaS. Compliance is mandatory at all times.” Easy. Makes a huge difference. Also, the collective noun for a group of agents is a bungle of agents.
• sowbug 9mo ago
  On a recent trip to Costa Rica, I discovered "Rice and Beans," which is not Gallo Pinto, but a Caribbean-influenced dish made principally of white rice, red kidney beans, coconut milk, and thyme. The dish name is in quotes because it's really the English words "Rice and Beans." It's marvelous, and I couldn't wait to try making it myself at home. Unfortunately, so far, it's been a mushy flavorless mess. I'll try a third go tomorrow. What I have so far: - soften diced yellow onion and green bell pepper in 1 tbsp coconut oil - toss in 3 minced garlic cloves - toast 1.5 cups dry rinsed white rice in the mix - pour in 1 can coconut milk - add 1 can black beans (still looking for red beans) - add lots of fresh thyme - put in 1 whole habanero (still looking for Panamanian pepper) - add 1 tsp salt - add 1 can chicken broth - if you have it, add a tbsp of Linzo sauce Then simmer until the rice is cooked. Next time I'm going to try with fresh coconut milk straight from a real coconut. That's what I explored today: how to make coconut milk. Would appreciate advice on improving the recipe. Late edit: on the plane back from CR I watched The Thinking Game, a documentary about DeepMind founder Demis Hassabis. Recommended.
  • dyauspitr 9mo ago
    I don’t know specifics of this dish but usually you want to cook everything else first and only add in the rice for the last 10 mins so it stays firm. The choice of rice matters too, basmati tends to stay separate. Also wash the rice first so excess starches get drained off.
    • sowbug 9mo ago
      I'll give that a try. Some recipes prepare the beans separately from scratch, and then pour the toasted rice into that already-seasoned liquid mixture. I'll pick up some basmati today, during Day Three of the local Panamanian chili pepper search.
      • dyauspitr 9mo ago
        Good luck on your pepper search! Also you probably want to have a 1.75:1 water:rice ratio in the pot when you add it in and it’s important to cover the top for the rice to fluff up. You don’t want a tight seal just a plate loosely covering the top so some steam can escape. Finally for some real flavor in these dishes you might want to use bouillon instead of the broth and add a good amount of it or it’s going to be bland. You can also skip the salt once you do that. Usually rice and bean type dishes always go with something on the side so you should probably have another protein/meat dish on the side to properly appreciate the dish. Maybe ladle some of the juices that come off the protein over the rice when you eat it.
• AdamN 9mo ago
  I used RfP (Request for Payment) today for the first time. It was ~11k USD between IBKR and Chase and the transfer was instant with verification on both sides. It's interesting to see the evolution of payments in the US moving so quickly over the past few years (FedNOW, etc...)
  • physicsguy 9mo ago
    Wait, can't you do that already?! I'm in my 30s but we've had pretty much instant payments as long as I've had a bank account (20+ years) in the UK.
    • malyk 9mo ago
      Not in the US. It’s kinda why paypal, venmo, zelle exist. Filling a gap. Our banking system is quite backwards.
    • drstewart 9mo ago
      Now try getting mobile signal on most of the underground, something every other metro in the world has had for 20+ years
      • physicsguy 9mo ago
        I don't live in London and rarely go there, but everyone has to use banking...!
      • rahimnathwani 9mo ago
        https://www.ianvisits.co.uk/articles/how-london-finally-cracked-mobile-phone-coverage-on-the-underground-86784/ https://www.ianvisits.co.uk/articles/how-london-finally-crac...
  • Aachen 9mo ago
    Wdym verification on both sides, did the recipient have to do anything? You can't just send money to an account number?
• jgrahamc 9mo ago
  Today, I am revising Portuguese grammar and so I've mostly been exploring the things I can remember well and those that I can't. Portuguese has a lot of verb forms that I need to get right. But it also has really interesting constructions like "ir ter com" which literally means "to go to have with" but is an idiomatic way of saying "to meet up" (with someone) and I keep remembering and forgetting it.
  • sowbug 9mo ago
    The phrase looks like "intercom." Maybe visualize some kind of mnemonic based on that -- buzzing the call button at a friend's apartment and asking if they want to meet up.
  • Aachen 9mo ago
    What do you use to revise this? Did you download or make an Anki deck?
    • jgrahamc 9mo ago
      Paper. I have revision sheets on paper.
• sionisrecur 9mo ago
  I was looking at the llms.txt files of some sites today and saw how straight to the point they are and started thinking I'd love to have a browser that only loads these txt files and the markdown files they link to. It reminds me of the Gemini protocol tried to do. I think I'll try to make a PoC this weekend. A search engine for llms.txt would be great too.
• kebabfrites 9mo ago
  Found out that our (small company's) VPS was compromised by a mining script, attacker probably exploited NextJS' RCE that I forgot to patch. The scripts were using half of the threads at 100%, i deleted all of them, found the watchdogs that kept recreating them and updated NextJS, luckily there was nothing to steal, now everything seems alright, but I'm thinking that I should format/rebuild everything just in case that I missed something. I'm a junior dev with very little experience, I would appreciate any suggestion/advice
  • varun_ch 9mo ago
    I would probably document, format and rebuild. Rotate secrets and inform anyone whose data might have been impacted. Assume they compromised everything they would have access to by running code on the server.
• pankajhbk007 9mo ago
  I found 2 super cool blogs today, and spent most of my time digging into it For understanding how internet works https://how-did-i-get-here.net/ https://how-did-i-get-here.net/ How a computer runs our code (or anything in genral) https://cpu.land/ https://cpu.land/ Also spent some time on reading about E2EE encryption because of some blog on HN I think :)
  • Gerard0 9mo ago
    Thank you for this. Wish I have had this 25 years ago!
• eightys3v3n 9mo ago
  Syncthing-Fork, the primary Android app for Syncthing, isn't exactly reliable anymore. TLDR a new completely unknown dev has taken over maintenance and doesn't communicate well; it's probably not reliable without checking if someone has recently audited the source code. https://forum.syncthing.net/t/does-anyone-know-why-syncthing-fork-is-no-longer-available-on-github/25661 https://forum.syncthing.net/t/does-anyone-know-why-syncthing...
  • sowbug 9mo ago
    That's unfortunate; thanks for letting us know. I only recently moved to Syncthing-Fork after giving up on the other Syncthing version I'd used for years, which seemed to do anything except actually sync on Android.
• deleted 9mo ago
  [deleted]
• ynac 9mo ago
  I have to replicate the little shoes on the cassette mechanics of a Becker Grand Prix car stereo from 1985. The plastic shoes are brittle from age, heat, and wear. I've spent the last couple weeks finding about two dozen ways that almost work. Their tiny and need to fit on three even tinier feet that ride rails for loading the cassette. This morning, I found out that I can probably make several possible plans work - good enough. Which is to say, I found out I was delaying the project with hopes for the perfect solution when good enough was already there.
• technothrasher 9mo ago
  I've been exploring making a camera trap to put out in my woods, to see if I can get a good photo of the very illusive bobcats we've got around here. I went out to California last month on a photo tour to get some nice shots of less skittish cats, and it gave me the motivation to continue my build of the camera trap. I just today received the custom little PCB I designed to read an IR sensor and have an STM32G convert it to focus and shutter release signals for the camera. I built the board up this morning and am getting ready to fire it up with my J-Link debugger probe attached and start the work on the firmware.
  • conductr 9mo ago
    Not to discourage you from building this, that sounds like fun, but I found a very cheap trail camera on Amazon is pretty great for this type of thing.
• 1-more 9mo ago
  I had a long boring meeting. I decided it was time to grow up and learn a little Lean. Let's do formal methods. Let's be serious, you know? It's pretty cool!
• aaronblohowiak 9mo ago
  Trying to get my Klipper-like thing for ClearCore up and running (currently called Cutter) so I can have a smaller mostly unchanging c++ codebase on the mcu and do higher-level application control of motors, outputs and sensors on linux in rust.
• patrickmay 9mo ago
  I found out that the reason my Mazda CX 5 infotainment console reboots repeatedly when the temperature drops below freezing is because of a low quality SD card used by the manufacturer. I'll be replacing it this weekend.
• misiti3780 9mo ago
  I learned there was a group of people in NYC in the late '70s and early '80s that may have been the biggest serial killers in American history. They killed at least 200 people, sometimes 4–5 people per week. https://en.wikipedia.org/wiki/Roy_DeMeo https://en.wikipedia.org/wiki/Roy_DeMeo
• dzink 9mo ago
  Make your own. Your mental health loves you when you come up with stuff. Humanity has generated so much content and none of us have the lifetime to consume it all, but that shouldn't stop you from making your own any chance you get. Make music - you don't need an instrument if you can whistle. Make stories - just say them to a recorder or your kids or write them down. Make food experiments - nothing will please your taste-buds more than listening to them and iterating on ways to get better. Make your own apps or experiences - with AI or by hand, your ideas may be surprising and worthwhile. Knit or make your own clothes, toys, wearable tech. Design your own 3D objects and maybe print them or animate them. We know that workouts lead to endorphins for the body, but the brain version of that is not only enjoyable but also can be scaled to be enjoyed by other humans too sometimes. Don't go through life without trying your own things.
  • noncoml 9mo ago
    Couldn’t have put it better myself. Some more ideas: DIY you car service and wash DIY house improvements and fixes Cook. Make bread Fix old electronics/appliances
• dkrajzew 9mo ago
  DBSCAN for grouping locations. Well, still slow...
• skeeter2020 9mo ago
  during the pandemic I was exposed to the "Today I learned" comment in slack, and I really liked it because it was usually something interesting (or comical, or painful) and relevant, and also helped me connect with my coworkers. I highly recommend sharing both here and in your group/team message channel random & interesting things you learned today with the #TIL tag.
• simonebrunozzi 9mo ago
  In 2026 I started writing letters. I mean, docs on my computer that will end up printed in physical form, then handed to someone, or shipped to someone in an envelope with a stamp. I feel I will do more and more of this, this year, as a little experiment. I will most likely experiment with different types of papers, etc.
• FatherOfCurses 9mo ago
  Started learning about ollama with a goal to setting up some kind of self-hosted LLM.
• bsoles 9mo ago
  That yoga classes give me more anxiety instead of reducing it. The calm and quiet of the yoga class does not similarly make my mind calm and quite. Instead, my wandering mind always wanders to bad things.
• _DeadFred_ 9mo ago
  I don't really musically understand reverb (to the point where I just know oh this needs a plate at X length), so I've been learning future garage forcing me to use a lot of reverb hoping it will click. Inspired by Urban Waifs sharing of some of their process in their Youtube videos. https://www.youtube.com/@UrbanWaifs/videos https://www.youtube.com/@UrbanWaifs/videos
• d_runs_far 9mo ago
  That exporting an svg from Illustrator and dropping into Fusion as a sketch is not a very wise approach - the scale is completely off! DXF is the way to go, keep your units in mm across the workflow. I've not used any CAD tools in a significant way in nearly three decades - all very familiar and yet not at the same time. Form-Z and ArchiCAD were my bread and butter back then, despised AutoCAD but here I am back in the Autodesk realm again with Fusion :-(
• bilsbie 9mo ago
  Tangentially related: if I do this frequently how can I frame it as a hobby normies can understand? Knowledge explorer sounds too esoteric.
  • tsumnia 9mo ago
    "Space Cowboy" makes it sound like you're in a cyberpunk future
  • kej 9mo ago
    I've heard it as "my hobby is finding new hobbies".
    • conductr 9mo ago
      I call it hoarding tools and am a major offender. I buy all the tools and kit to do the hobby, then lose interest
  • OkayPhysicist 9mo ago
    I like to describe myself as gaining/having "an approximate knowledge of many things"
• throwaway2037 9mo ago
  I read the Wiki page for Thurgood Marshall: https://en.wikipedia.org/wiki/Thurgood_Marshall https://en.wikipedia.org/wiki/Thurgood_Marshall This part surprised me: > Marshall retired from the Supreme Court in 1991 and was replaced by Clarence Thomas. I remember watching the hearings about Clarence Thomas as a kid. At the time, I had no idea what a legal giant was Thurgood Marshall.
• jjice 9mo ago
  Postgres replica identities and logical replication, while working with some RDS blue-green deployments in staging. Very impressed with how good the blue-green deployments are now. I haven't used them in a few years and the UI and documentation around them is really solid.
• 8note 9mo ago
  i learned that windows has many different touch/pen implementations, and that the most recent one takes multiple inputs for a location, one at the pixel scale and another at the pixel scale multiplied by something like 2600 or so. i havent figured out why they did that yet, but ill find that out by eod
• j_not_j 9mo ago
  Went for a walk today. Found a $100 bill in the grass. No-one nearby to think it might belong to them.
  • greenie_beans 9mo ago
    dang! my biggest year, while walking everyday, was like $75
• anabis 9mo ago
  OpenCode has 11 options for installation. I knew curl, npm, and docker, but asked Gemini about the rest: bun, pnpm, yarn, brew, scoop, chocolatey, paru, mise. Although its wonderful that people are building and creating, I also hope it calms down somewhat so I can choose from well tested few options in the future.
• suchoudh 9mo ago
  concept maps being different from mindmaps and that its better to make them by hand than on a software like cmaptools last week: Worked with son to find time period of a pendulum (a bell attached to a rope) .. the exploration was to get to microseconds precision). I sincerely hope more people could appreciate H C Vermas physics teaching methodology https://hcverma.in/Experiments https://hcverma.in/Experiments
• nkg 9mo ago
  Not today, but the day before I launched my 2nd attempt at making chocolate from cocoa pods. The 1st time, the fermentation failed and I just got rotten seeds in a pot.
  • pvillano 9mo ago
    That's super cool. Good luck! ~I watched a video series where someone did the techniques in isolation in reverse order and I thought it was a good idea. That way you're always learning on perfect ingredients. i.e. buy chips and learn to temper, then buy roasted nibs and learn to refine, then buy dried and learn to roast, then buy pods and learn to ferment and dry.~
• kernelmark 9mo ago
  Today I learned why Harry Potter's wand sometimes acted on its own. It had a will of its own (due to the phoenix feather core). It remembered the enemy (Voldemort) and attacked him to protect its owner.
• roro5179 9mo ago
  [dead]
• skyberrys 9mo ago
  I found out my second bicycle is a claw hanger mount rear derailur, because I bought a direct mount derailur and had to find an adapter part.