Hacker News: wrvn

New comment by wrvn in "More questions about whether researchers can trust OpenAI with unpublished math"

wrvn — Thu, 10 Sep 2026 16:47:06 +0000

Is this claim based on anything besides there being an alternative way to disable it? The privacy center mirrors multiple other functions as well, like account deletion and downloading personal data, but the corresponding buttons in ChatGPT are still doing what they are supposed to.

New comment by wrvn in "US Administration announces 34% tariffs on China, 20% on EU"

wrvn — Thu, 03 Apr 2025 20:57:43 +0000

This type of approach is called protectionism, the Wikipedia article is pretty good and goes into the implications of it: https://en.wikipedia.org/wiki/Protectionism

New comment by wrvn in "Steve Ballmer's incorrect binary search interview question"

wrvn — Tue, 03 Sep 2024 16:46:49 +0000

Although upon further thinking, you could then sprinkle in some binomial searches to abuse the uniformity. So the -0.64$ is merely a lower bound.

New comment by wrvn in "Steve Ballmer's incorrect binary search interview question"

wrvn — Tue, 03 Sep 2024 16:42:02 +0000

That approach would still leave you weak to always picking 1 or 100. Without proof, I believe the optimal guessing strategy would perform equal (on average) for every number, to not give the opponent any standout choice (common for optimal strategies, but not always the case). If my math serves me right, that would be an average of log2(100) = 6.64 guesses for any number, which would make you lose 0.64$ on average.

New comment by wrvn in "The Sell ∀ ∃ as ∃ ∀ Scam"

wrvn — Sun, 23 Apr 2023 02:05:20 +0000

I wonder if there is a name for this. Antimetabole comes to mind but that usually requires two clauses. I suppose it is a "chiastic pattern" which is a more broad definition, which I believe also applies to smaller patterns although I have only seen it used for larger patterns like chapters.

New comment by wrvn in "Hubble sees possible runaway black hole creating a trail of stars"

wrvn — Fri, 07 Apr 2023 10:15:23 +0000

There actually is a sextuple star system in the night sky. Castor looks like a single star but actually consists of three binary stars: two of them in a binary system that is itself in a binary system with the other binary star. I don't know if there could be a stable position for a planet that would never experience nights, but there is at least some reason behind the idea.