jdewerd

5 ms·

1.
by jdewerd 5mo ago
Loads of games from the era roundtripped their textures through lossy S3/DXT compression and then stored them as uncompressed RGB or RGBA. I know this because I wrote a Unreal Engine texture repacking tool with a "DXT detection&qu
2.
by jdewerd 10mo ago
How long until it comes with a DRM AI and then my anti-DRM AI will have to fight it in a virtual arena (with neon lights and killer soundtrack, of course)?
3.
by jdewerd 10mo ago
ISM is thriving, the only tragedy is that carriers haven't figured out how to charge rents on it and that's a tragedy for them , it's a spectacular success for everyone using it for free. Carriers don't need 6GHz for ba
4.
by jdewerd 10mo ago
Completely independent of bandwidth, higher frequencies also fall off faster. That's bad if you are trying to cover max space but good if you are trying to avoid noisy neighbors.
5.
by jdewerd 10mo ago
I never said anything about free or government-run WiFi, just about auctioning off the spectrum. Companies that build out the infrastructure should be able to charge for access, but they shouldn't be able to prevent others from competi
6.
by jdewerd 10mo ago
The most efficient way to extract money from people is to sell off the spectrum to the highest bidding rent seeker, I agree. As for most efficient use of the resource, well, consulting my spectrum analyzer, ISM bands are winning by a mile a
7.
by jdewerd 2y ago
Is that because defense doesn't like them or is it because (non-wartime) defense moves on geological timescales and these are "new"?
8.
by jdewerd 2y ago
Yes, but the more we mix sieve rejection into candidate selection the more we complicate the rule of thumb. "Reject even numbers as prime candidates" is probably OK to leave as an exercise for the reader, as is the equivalent &quo
9.
by jdewerd 2y ago
Yes, excellent point! I originally omitted this detail for simplicity, but on reflection I don't think it actually achieved much in the way of simplifying the rule so I changed it to reflect reality. Thanks for pointing that out. EDIT:
10.
by jdewerd 2y ago
> The prime-counting function approximation tells us there are Li(x) primes less than x, which works out[5] to one prime every 354 odd integers of 1024 bits. Rule of thumb: Want a 1024-bit prime? Try 1024 1024-bit candidates and you&#x27
11.
by jdewerd 2y ago
Oh, he only busted the Great Depression, won WWII, built half of the infrastructure that we keep kicking the expiration date on, and negotiated 80% of the beneficial fine print in your employment contract. Don't you think he could have
12.
by jdewerd 2y ago
I love cheap and reliable TP-Link routers as much as the next guy, but it's definitely also a security issue. The CCP almost certainly has a backdoor. Maybe a respectable one in the form of an undisclosed bug or the ability to lean on
13.
by jdewerd 2y ago
I thought Shor's algorithm could attack ECC too and the lattice crypto with the sci-fi crystal names (Kyber and Dilithium) was the response? If I go to https://www.google.com using Chrome and Inspect > Security, I see it
14.
by jdewerd 2y ago
Cool, I hadn't run into it before so thanks for introducing me! I was going to include the digits for comparison, but yes, on second thought 6002 digits is probably too much for polite inclusion in a HN post.
15.
by jdewerd 2y ago
The 50 000 000th prime is 982451653, but fun fact: you may have already memorized a prime much larger than this without even realizing you have done so! 2^255-19 This is where Curve 25519 and the associated cryptography (ed25519, x25519) ge
16.
by jdewerd 2y ago
> There's already a panoply of CUDA alternatives Is there? 10 years ago, I burned about 6 months of project time slogging through AMD / OpenCL bugs before realizing that I was being an absolute idiot and that the green tax was
17.
by jdewerd 2y ago
Haha, yep. Under construction!
18.
by jdewerd 2y ago
Jargon and shared context are barriers for newbies. In a new field they simply don't exist yet. The avenues for accidentally excluding people (or intentionally but I like to be charitable) don't exist yet.
19.
by jdewerd 2y ago
> Could have done without the first paragraph. :) Sure, let's turn down the temperature. > youre being flippantly dismissive to the point of shading instead of illuminating Let's turn down the temperature. > I wouldn&#x
20.
by jdewerd 2y ago
Lithium Iron Phosphate (LFP) has been ramping for a decade, with "no cobalt" as a selling point. It's not huge in the US, but it is in China. https://www.isi.fraunhofer.de/en/blog/themen/batteri
21.
by jdewerd 2y ago
Why did you spend 200 words arguing for the premise of my second point? Usually one spends time arguing against your opponent but ok, sure, I'm glad we both prefer refining and manufacturing in friendly countries. > [the commencem
22.
by jdewerd 2y ago
Yeah but do you have a gas station at home so it's "always full"? That's really nice ;)
23.
by jdewerd 2y ago
Is charge time important because you can't install a L2 charger at home / apartment to keep it "always charged" or because your usage pattern is too heavy duty for a 30 minute break every 200-300mi? If it's just the
24.
by jdewerd 2y ago
"Mostly from Australia and Chile" seems like the opposite of baggage, that sounds like about the best you could hope for in a global commodity, so many of which come from unstable regions, conflict regions, or outright adversaries
25.
by jdewerd 2y ago
> Without a direct connection to Jensen, there is a 50+ week lead time on Infiniband Oof, that's new to me, sounds like you're between a rock and a hard place. Here's hoping you get the wrinkles ironed out and make it to t
26.
by jdewerd 2y ago
> It is rife with firmware bugs, limitations, and hardware failures. Is it? I've been out of the space for a while but I have only seen firmware bugs/limitations/failures rise to strategic importance with AMD installs, whi
27.
by jdewerd 2y ago
The other day, the Synchrony chatbot was able to remove a fee that they had previously agreed to remove (delays on their end created a late fee on my end). I was shook. But yeah, 99% of the time the bots are as useless as IVRs. "Please
28.
by jdewerd 2y ago
Rebecca Tinucci started showing up above Elon in listicle popularity contests. Investors loved her, the industry loved her, the media loved her. She wasn't yet a challenger for CEO, but she could have become one if investors soured eno
29.
by jdewerd 2y ago
Ford bought a newspaper to complain about the Jews, and just wait until you hear about the VW guy...
30.
by jdewerd 2y ago
One type of foundational infrastructure got a few years ahead of its applications? Oh, the horror. The horror!

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