kevindamm

6 ms·

31.
by kevindamm 11mo ago
This was, I think, the greatest strength of MapReduce. If you could write a basic program you could understand the map, combine, shuffle and reduce operations. MR and Hadoop etc. would take care of recovering from operational failures lik
32.
by kevindamm 11mo ago
If you count with each finger as a binary digit you can count up to 15 on one hand! 255 if you use both hands! More like 1023 if you also use thumbs but I prefer to use them as carry, overflow bits.
33.
by kevindamm 11mo ago
It's never too late to learn queueing theory ...because the typical setup assumes λ ≤ μ so all arriving jobs eventually get serviced. I think there's a lot of unmet potential in design of interfaces for pipelines and services that
34.
by kevindamm 11mo ago
I remember the 3D glasses that you could plug into the Sega Master System in the mid-80s. They took what would be interlaced frames and rendered them to different eyes instead (which made the version getting shown on the connected TV prett
35.
by kevindamm 1y ago
Something I haven't seen mentioned in this thread or TFA is just how high corporate taxes were (and even personal investment taxes) in the 50s and 60s, and this influenced spending on R&D immensely because that investment wasn&#x27
36.
by kevindamm 1y ago
The first time I learned it was from a book by LaMothe in the 90s and it starts with your demonstration of 3D matrix transforms, then goes "ha! gimbal lock" then shows 4D transforms and the extension to projection transforms, and
37.
by kevindamm 1y ago
Enjoyable, after getting the hang of the "full rows/cols" variant it became like popping packing bubbles.. I kind of wanted to keep playing with the kaleidoscopic shapes you can make with the near-complete positions. I'd
38.
by kevindamm 1y ago
Elsewhere someone already mentioned the Ulam Spiral [1] and I'll add the Sieve of Pritchard [2] which combines the Sieve of Eratosthenes with Wheel Factorization. Its wiki page has a nice visualization. Notice that when the primes ar
39.
by kevindamm 1y ago
it's Tensor Calculus, mostly... but it's also a fair amount of systems engineering. The proportion of each depends a lot on whether the task is research or application.
40.
by kevindamm 1y ago
I didn't know it required a player to invoke it, I was basing the statement on chess implementations I've read (and written) where it kicks in automatically... but the 5-time limit you mention still supports my case that there&#x2
41.
by kevindamm 1y ago
Not explicitly, but when you consider the "cannot repeat the same board layout three times" rule, the number of moves possible in a game does have a limit.
42.
by kevindamm 1y ago
Mr. Potato Head is also made from plastic which recently switched to fully plant-based materials https://newsroom.hasbro.com/news-releases/news-release-detai... I wonder if that's also part of the joke? but I thi
43.
by kevindamm 1y ago
Agreed. I think we'll see a further strengthening of reputation as a signal over any isolated statement or marketing.
44.
by kevindamm 1y ago
Where's the boundary, though? If someone generated slop but edits every sentence replacing at least half the words and ensuring it is in their voice consistently, does it still need the badge? If only one word is replaced but it corr
45.
by kevindamm 1y ago
"ooh I think I have a way to improve pie production"
46.
by kevindamm 1y ago
Maybe they wanted you to see how much pie you are willing to eat.
47.
by kevindamm 1y ago
I see some value in that, but in my experience it's actually the queries that inform much of what the table shema and indexes should look like. Especially when joins and/or ordering are involved, it's the details about what
48.
by kevindamm 1y ago
If priorities are being made after code is written then it won't matter if the code took a day, a week or a month, or whether it was done under the company's florescents or a sunny back patio. Decisions about near-term objectiv
49.
by kevindamm 1y ago
It shouldn't be about hours in a seat, it should be about deliverables met and actions & communication around those that couldn't be met. For knowledge work and creative tasks, at least. I would really be surprised if Amazon
50.
by kevindamm 1y ago
I think it may have been a one-two punch of §174 and the end of ZIRP. Of note, the OBBB reinstated the ability to deduct R&D, so businesses are no longer required to capitalize and amortize R&D expenses (including software developme
51.
by kevindamm 1y ago
Sure, I guess my point was that in the beginning, on old teletype systems, these were separate mechanical operations. Carrying them over as separate key codes made sense still because they had separate semantics to everyone at the time. N
52.
by kevindamm 1y ago
I don't have additional historical context, but the reason that makes sense to me is that a LF can be repeated multiple times (e.g. for double-spaced lines, or for advancing to the next page) without needing to also issue a CR more tha
53.
by kevindamm 1y ago
Which assumptions? ECDLP is still considered computationally hard, and ECC considered secure. There are invalid curve attacks and small subgroup attacks but that's a problem with key selection, not a fundamental problem with ECC. Do
54.
by kevindamm 1y ago
Indiscriminate targeting. It's clarified at the end of that paragraph, and was part of the article's lead-in: "There's a thought among the public that if you don't work in a sensitive area that the PRC might b
55.
by kevindamm 1y ago
I've seen morse code written around the border of images (e.g. Spy vs Spy did this) which easily goes ignored by the uninitiated, and even when noticed can often escape further detection. Another note: since in the US there are only fo
56.
by kevindamm 1y ago
put a few spaces before what you type it will produce a blockquote which I hope will remove the HN "corruption" pass .... .- ...- . ..-. ..- -.
57.
by kevindamm 1y ago
Outline is an open source shadowsocks client, and you provision your own server to act as the proxy. You can use it against any Shadowsocks server you want, and the protocol makes it look like regular https traffic. https://gith
58.
by kevindamm 1y ago
The biggest factor is dependencies' changes, so a good defense against bitrot is to reduce the dependencies as much as possible and try to limit dependencies to those which are exceptionally stable. This greatly limits velocity, though
59.
by kevindamm 1y ago
While bottom-up evaluation is the norm in datalog, it is not a requirement and there are datalog engines that evaluate top-down or all-at-once. But I still agree with you about the capitalization. Some formats, like KIF, use a '?&#x27
60.
by kevindamm 1y ago
Maybe the zeroth tip is "never go full vibe coder." It can be tempting, but there's so much impact that even small changes to the code can have, and often in subtle ways, that it should at least be scanned and read carefully

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