Kai
@kaichung.bsky.social
Condensed matter theorist, math hobbyist
Why does this look like an LLM summary
November 8, 2025 at 9:56 AM
Why does this look like an LLM summary
Probably not localized to physics I suppose, c.f. recently deceased Watson and his race shit
November 8, 2025 at 9:45 AM
Probably not localized to physics I suppose, c.f. recently deceased Watson and his race shit
I do want to know why this happens to a lot of ageing physicists. I guess mostly it happens to ones who were once acclaimed but are past their prime and get stuck on some pet theory. But I know it can happen to some who were never that famous to begin with.
November 8, 2025 at 9:44 AM
I do want to know why this happens to a lot of ageing physicists. I guess mostly it happens to ones who were once acclaimed but are past their prime and get stuck on some pet theory. But I know it can happen to some who were never that famous to begin with.
Reposted by Kai
Jackson's dissent, joined by Sotomayor and Kagan, says the evidence showed that gender-incongruent passports led to humiliating, invasive searches of trans Americans (including strip searches) since their gender marker didn't align with their appearance. The policy is both cruel and irrational.
November 6, 2025 at 8:20 PM
Jackson's dissent, joined by Sotomayor and Kagan, says the evidence showed that gender-incongruent passports led to humiliating, invasive searches of trans Americans (including strip searches) since their gender marker didn't align with their appearance. The policy is both cruel and irrational.
Both but also (d) "pretend that it's normal"?
November 6, 2025 at 5:23 PM
Both but also (d) "pretend that it's normal"?
Dear lord I haven't graded anything since a while before LLMs, it must be awful now
November 6, 2025 at 5:21 PM
Dear lord I haven't graded anything since a while before LLMs, it must be awful now
When physical solutions to the equations of motion cease to exist
November 6, 2025 at 5:08 PM
When physical solutions to the equations of motion cease to exist
Okay but imagine pizza toppings on top of fries. That sounds delicious actually
November 6, 2025 at 5:53 AM
Okay but imagine pizza toppings on top of fries. That sounds delicious actually
It's also the generator of the Lie algebra or R, no? So this is the exponential map from Lie algebra generators to Lie group translations
November 3, 2025 at 11:49 PM
It's also the generator of the Lie algebra or R, no? So this is the exponential map from Lie algebra generators to Lie group translations
A bit obvious after learning about Lie groups and the exponential map
November 3, 2025 at 11:35 PM
A bit obvious after learning about Lie groups and the exponential map
I just was reminded of when I realized you can write the Taylor series this way and that this is why people say that momentum is the generator of translations! Blew my mind at the time
November 3, 2025 at 11:20 PM
I just was reminded of when I realized you can write the Taylor series this way and that this is why people say that momentum is the generator of translations! Blew my mind at the time
I prefer
f(x+c) = exp(c ∂_x) f(x)
:)
f(x+c) = exp(c ∂_x) f(x)
:)
November 3, 2025 at 11:02 PM
I prefer
f(x+c) = exp(c ∂_x) f(x)
:)
f(x+c) = exp(c ∂_x) f(x)
:)
Comment section like on YouTube videos?
November 3, 2025 at 9:19 PM
Comment section like on YouTube videos?