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uberwensch.bsky.social
Rochelle
@uberwensch.bsky.social
1.2K followers 420 following 5.4K posts
like if Just Some Guy was a girl
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · May 7
What is entanglement? Itamar Pittowsky claimed that these results brought us right to the precipice of logical contradiction--but not over. Abner Shimoney described it as a piece of "experimental metaphysics." I'm a nobody, but I think entanglement is the most interesting thing ever discovered.

🧵⚛️
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 2h
we did figure this out

but, thank you 🥰
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 5h
on Internet Archive
uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 5h
looks like an opportunity to suggest random unrelated canadian media check out Nirvana the Band the Show
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 5h
oops i meant to say associated to GL(nR) itself
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 5h
the approach of many texts is to regard vector spaces as "associated to" a GL(n,R)-torsor by its action on frames. i.e. writing [1,2,3]_B where B is a basis and saying its equal to [1,0,7]_b for some other basis.
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 7h
makes more sense to me personally to wedge the two vectors together first into a surface area element and then feed it to a dual-of-such-things but it all shakes out the same
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 7h
uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · May 13
when are two things equal? never. if they were equal, they wouldn't be two things. you're welcome.
boarders.bsky.social
boarders.bsky.social @boarders.bsky.social · May 12
it also points at the difficulty of equality - using Frege’s terminology, we have 1 and 0.999… denote the same real number; have the same reference, but have a different sense. Equality of real numbers is the _extensional_ equality of what they denote (e.g. Dedekind cuts).
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 11h
the only downside (or maybe its upside) is that I don't think Everett (or other many-worlds scenarios) fits into things very nicely
uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 11h
since its in the form of an inconsistent triad you can even have them think about which premise they would prefer to drop
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 11h
Bell experiments are a really nice place where you can sell someone on the weird quantum world with literally just the observed statistical frequencies, without using any formalism or saying "superposition", "interference", or "collapse"
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 12h
what is this?
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
Here: drive.google.com/drive/folder...

Check in Marsden & Ratiu, at page 170 (PDF page 184)

It's the point-wise adjoint of the tangent lift. There's a proof that pullbacks by these preserve the canonical one-form.
Texts - Google Drive
drive.google.com
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
no
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
find tattoos all over my body like Leonard Shelby and they all say "eat food"
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Rochelle @uberwensch.bsky.social · 1d
I will think about it 🥰

Thank you for engaging with me so much on this
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
diffeomorphisms of the base have a "cotangent lift" which is a symplectomorphism. I'll find a reference for you in a sec.
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
If it harder in some sense to change the BC by way of the present, 1) what is this sense, and 2) isn't it part of what is to be explained? (Asymmetric influence on past and future?)
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
I am normal now, I swear
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Rochelle @uberwensch.bsky.social · 1d
When I was young I used to repeat myself over and over and over, with minute changes in wording, searching for the perfect one. Whenever I thought of a superior wording I would have to repeat that one more times that all the others, to cement the 'finalized' version in other people's heads.
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
I can ask what if the BC were different, or absent, but I can also ask what if the present "universal slump toward equilibrium of all systems" were different? If it were, the BC would necessarily be different as a *result* of that change.
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
doesn't this inference require that the reservoir is off to the side *and* in your past? and doesn't it draw on your many experiences in our (circumstantially) time-directed world?
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Rochelle @uberwensch.bsky.social · 1d
How do we read off which thing is the cause or the explanation of another, without helping ourselves to the very wealth of time-directed experiences we aim to underwrite?
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
An asymmeyric view of (say, interventionist) causation is strongly conditioned by our experiences in this particular world, isn't it? The influence of universal equilibration (or PH---whichever is more basic 🥰) informs what things are feasibly intervened upon.
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
Without a tensed notion of 'causes', doesn't the present status of universal equilibration explain or cause the PH just as much as it explains them? If they weren't equilibrating, there wouldn't be that boundary condition back then.
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uberwensch.bsky.social
Rochelle @uberwensch.bsky.social · 1d
ok forgive me but i took a shower and now I understand that my hesitation is this: I worry we might smuggle in a tensed conception of causes when making the claim that "PH explains thermodynamic behavior"---which is exactly one of the things we're trying to have 'thermodynamic behavior' underwrite
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