5 ms·
LK-99
- icodestuff 3y agoHuh. The second paper listed different vacuum pressures than the first. 10^-3 torr instead of 10^—5.
- optimalsolver 3y agoComment I saw in a previous thread: Stone age Bronze age Iron age LK-99 (®) age https://news.ycombinator.com/item?id=36869209 https://news.ycombinator.com/item?id=36869209
- soligern 3y agoThis is definitely premature. If it’s real though, holy cow, can’t wait for my 200Ghz processor.
- whoopdedo 3y agoMy speakers will sound so much better with LK-99 Monster Brand cables.
- bick_nyers 3y agoThen I can finally stop prematurely optimizing my code!
- er4hn 3y agoUp until every Chrome tab spawns a new Fuchsia OS.
- Euphorbium 3y agoWhat tasks are cpu limited now? For me none.
- optimalsolver 3y agoProgram synthesis/symbolic regression.
- deleted 3y ago[deleted]
- capableweb 3y agoNot just CPU speeds would be able to be increased though, lots of others could be increased too.
- deleted 3y ago[deleted]
- willis936 3y agoThe draw calls for the 856th frame of counter strike this second won't queue themselves.
- topper-123 3y agoLots and lots of CI is cpu limited, for one thing.
- valine 3y agoMost of the algorithms we use in machine learning are chosen specifically because they parallelize well. If we could increase clock speeds arbitrarily high, a huge selection of algorithms we passed on would suddenly become viable.
- anonymoushn 3y agodo you not use web browsers or compilers?
- cmrdporcupine 3y agoyou'd be surprised how much of what you think is CPU limited is actually constrainted by memory bus bandwidth, locks, high cache evictions / bad cache use, or I/O. something as seemingly innocuous as checking and incrementing an atomic counter across a bunch of threads can induce a 10x performance drop it's totally batshit insane how much faster things run when they're able to work with stuff in L1 cache where they're not waiting on slower memory. modern CPUs are insanely fast and crazy concurrent, but the rest of the machine can't keep up.
- yellowcake0 3y agothis doesn't even make sense
- optimalsolver 3y agoWhat's confusing you?
- hcks 3y agoIt’s cringe, dude.
- optimalsolver 3y agoDude, you're now in the LK-99 Age. Learn to live with it.
- yellowcake0 3y agoit's not confusing, it's just silly, the Iron Age ended over 2000 years ago, so there were just no ages between the birth of Christ and LK-99?
- optimalsolver 3y agoNone which are generally accepted by historians that happen to be named after a single substance: https://en.wikipedia.org/wiki/Three-age_system https://en.wikipedia.org/wiki/Three-age_system
- yellowcake0 3y agoThat's only for prehistory. In any case it's a pretty silly contrivance, how about the oil age? or the silicon age? Both of those are likely to remain more impactful than the LK-99 age, in the event that it does turn out to be an ambient temp/pressure superconductor.
- 3y ago
- BryanLegend 3y agoThey sat on it for 4 years?
- mark_feelthree 3y agoSeems like they sat on it for 24 years!! The 99 refers to 1999.
- carabiner 3y agoAlex Kaplan (Princeton physics bachelor's, CEO of Cometeer which is like Juicero of coffee) thinks it's over: https://twitter.com/alexkaplan0/status/1684642852616192000?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Etweet https://twitter.com/alexkaplan0/status/1684642852616192000?r... Edit: He's been breathlessly tweeting his hopes for the compound, and has now done complete 180. This is just meant to be a data point showing that one hypester has lost faith. His physics academic background (which is non-expert but still better than the average joe) shows that he's got a tiny bit of credibility, but his being of a failing coffee startup shows that he's probably got other motives.
- whimsicalism 3y agoAs a Harvard physics bachelor, I don't think an undergrad physics degree gives much expert claim at all.
- carabiner 3y agoYeah, I think he knew his initial breathless positive tweeting would go viral and he was really trying to attract new investment for his struggling startup. Which he did.
- soligern 3y agoWhat’s the context for this? What does over mean and who did he sit down with?
- laluser 3y agoIt's FUD. If you are being so vague without any critical argument, then there's nothing of substance here.
- saberdancer 3y agoThe guy loves to jump on and off the hype train. I guess he just now read the paper properly and found some inconsistencies. I'd wait for people to try and replicate. It is obvious that the paper was not ready and has mistakes.
- ChrisArchitect 3y ago[dupe] lots of previous discussion: https://news.ycombinator.com/item?id=36864624 https://news.ycombinator.com/item?id=36864624
- zh3 3y agoWhat would you do if you genuinely believe you'd discovered something as potentially important? 1) Get paranoid, figure out where you've gone wrong 2) Kicked it as hard as we can, can't find a problem. So... 3a) Keep this potentially important result under our hats for as long as it takes 3b) publish it with with some risk of embarassmment, and - hopefully - get others to either verify the result or point out where we went wrong. I'd always go for b) - after strenuous effort to falsify my own theory. Of course, some people - scientists are not an exception, just less susceptibl to it - can't bear to abandon a lovely result.
- nwienert 3y ago4) Go to your government to get the biggest cash out immediately, for the lowest risk (they may be unhappy if you didn't disclose it to them first), also putting your nation potentially massively ahead of others. They supposedly started playing with this in 1999. If they discovered this stuff nearly two decades ago and SK was let in on it, maybe they have a whole array of military projects built around it already?
- TheAceOfHearts 3y agoIf I encounter something world-changing I'd consider it an ethical obligation to share it with the world. Show your work, be transparent about what you know and what you've found, and try to help others in replicating. Maintain humility. Something I dislike about modern research is that there's not a lot of transparency or rapid updates. It wouldn't take someone much time to record a few additional videos and try to address concerns regarding the magnetic properties. If you really think the findings are important you should try to have public communications with other scientists where you share as much information as possible. Too many people get caught up with playing politics and lose sight of the real goal, which is pushing humanity forward.
- wmf 3y agoIn theory you should privately invite someone to replicate your work, then publish it if the replication works. You'd probably get scooped though, so you have no choice but to arxiv it immediately.
- guender 3y ago[dead]
- ShadowBanThis01 3y agoIs what? You forgot the rest of the title.
- dwheeler 3y agoI'm currently skeptical, as these are extraordinary claims. But it doesn't matter what my current guess is. This claim either replicates or it doesn't. I really hope it replicates. If it does, then even if this material can't be directly used to change industry, it's quite likely to lead to materials that do. So I'm crossing my fingers!
- mcmoor 3y agoTrue science at its best. Don't care about who why how when one writes it. It either replicates or it doesn't!!
- paulmd 3y agoit really seems like a "can we get people to believe in/falsely claim replication of a miraculous scientific breakthrough" study. Red Mercury, if you will. I realize this is probably a geopolitical can of worms but if it exists and they've produced samples of it, send it to switzerland (CERN?) or someone and let them look at it. That's significant even in the absence of reproducibility of the manufacturing process itself, and if they have something, that's an easy way to prove it. The scientific world would love to look at a sample of a very unusual material. but yes, it would always be nice if the world was reproducibly quite different than our current models imply, and if there's something novel here then this may just be the first in a family of materials that may behave similarly, once the effect is understood. 97C is a wildly high superconducting temperature, having hot superconductors would be world-changing, there's all kinds of places that would be applicable - you don't even need cryocooling at that point.
- hcks 3y ago[flagged]
- distortionfield 3y agoDid you even read it? > As of 26 July 2023, the measured properties do not prove that LK-99 is a superconductor What more could you possibly want from them?
- deleted 3y ago[deleted]
- wmf 3y agoEven if this gets debunked it's already probably noteworthy enough for an article.
- DerekL 3y ago* losing
- mark_feelthree 3y agoWhile we're in this phase of Schrodinger's superconductor of 'waiting on replication', one thing is clear... Science is broken. If they really saw this as being possible in 1999 why has it taken so long to progress? Well, I guess it's because they had day jobs... but think of what could have changed if it worked 24 years ago... think of the carbon we've spewed out in a quarter century :( We really need a multi-billion dollar x-prize for tech like this... and make it open-source so it's not paywalled behind a patent. Someone get Bill Gates to write a cheque...
- tim333 3y agoSadly if you look at the video ot LK-99 on a magnet https://twitter.com/Rainmaker1973/status/1684218600456876032 https://twitter.com/Rainmaker1973/status/1684218600456876032 and compare it to videos of superconducting flux pinning and diamagnetic material, it looks more like diamagnetic https://twitter.com/alexkaplan0/status/1684632286388465664 https://twitter.com/alexkaplan0/status/1684632286388465664