Sebastian Sylvan

@[email protected]
305 Followers
89 Following
129 Posts

Graphics programmer from Sweden, now in Seattle. https://www.sebastiansylvan.com/

https://www.threads.net/@ssylvan

Sebastian SylvanNov 1, 2023
Yaneer Bar-YamOct 27, 2023

New paper on Masks:

Some claim scientific studies show masks don’t work, or that surgical masks are as good as N95s. Just released paper shows this claim is false. Masks work, and N95 respirators give a much higher benefit than surgical masks.

The controversy about N95 respirator and mask efficacy is based on claims that studies (RCTs and meta-analyses) have no observed effect. Our paper shows these claims result from the use of incorrect mathematical equations.

#covid @whn

Show threadSebastian SylvanOct 13, 2023
@rygorous Which one?
Show threadSebastian SylvanOct 4, 2023
@lritter you can reconstruct receiver plane from ddx and ddy too. Just means you lose hw pcf since you need to compare against different z per tap.
Show threadSebastian SylvanSep 25, 2023
@cort uncanny accuracy
Show threadSebastian SylvanSep 24, 2023
@yiningkarlli wait. So Godot is all doubles???
Show threadSebastian SylvanSep 23, 2023
@BartWronski I’m the opposite. When I see obvious 100% repro glitches or bugs I get angry at whoever had so little respect for the customer that they shipped that.
Show threadSebastian SylvanSep 2, 2023
@BartWronski @nicebyte siggraph has high concentration of cool ideas. But 95% if it will never see the light of day in any real application.
Show threadSebastian SylvanAug 30, 2023
@aras @webanck one thing that’s nice about odd even is that it never makes the sequence less sorted in the intermediate steps. So you can amortize the passes over multiple frames in particle systems. I guess if you tracked which step you were in for the bitonic sort you could render the reversed subsequences in reverse order to get the same effect for bitonic.
Show threadSebastian SylvanAug 21, 2023
@mattblaze @HcInfosec @jeroen There are e-voting mechanisms where voters could verify their vote after the fact, so any changing of the vote would be detected. It does mean that anyone could force you to reveal your vote (at least before the election result is announced, since you'd presumably destroy your receipt at that point), but again we have that problem with mail-in votes already.
Show threadSebastian SylvanAug 20, 2023
@mattblaze @HcInfosec @jeroen also mail in voting is secure in practice but not in theory. Nobody has even once checked my ID either to apply for mail ballot or to vote. It’s based on signature verification of whatever I used to sign up. I haven’t signed my signature the same way twice in my entire life. It wouldn’t be too hard to outdo that in terms of aithentification rigor.