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Friends Don’t Let Friends Learn Probability from Yudkowsky | Science After Sunclipse (www.sunclipse.org)
submitted 1 year ago by blakestacey@awful.systems to c/sneerclub@awful.systems
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For convenience, I gathered a few comments of mine into a blog post.

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[-] self@awful.systems 12 points 1 year ago

If you really want to cite someone he admires, you could note that Eliezer Yudkowsky uses 1 as a probability when trying (and failing) to explain quantum mechanics, because he writes probability amplitudes of absolute value 1.

I’m glad I’ve never pissed off a career physicist, cause this is concise, targeted destruction

[-] titotal@awful.systems 11 points 1 year ago

If you want more of this, I wrote a full critique of his mangled intro to quantum physics, where he forgets the whole "conservation of energy" thing.

[-] blakestacey@awful.systems 5 points 1 year ago

Thanks for taking on that task (I linked to your post to provide further details).

[-] self@awful.systems 4 points 1 year ago

fuck yes. I can tell already this’ll need more brain than I can give it during work, but from the first few paragraphs this seems like absolutely my kind of shit

[-] skillissuer@discuss.tchncs.de 2 points 1 year ago* (last edited 1 year ago)

despite phase shifts being the main cause of the described effects.

what are the other ones?

(when i'm thinking about splitter with pi/2 phase shift, i'm thinking about coupled line coupler or its waveguide analogue, but i come from microwave land on this one. maybe this works in fibers?)

[-] titotal@awful.systems 2 points 1 year ago* (last edited 1 year ago)

what are the other ones?

I guess the rest of the experimental setup that recombines the photon amplitiudes. Like if you put 5 extra beam splitters in the bottom path, there wouldn't be full destructive interference.

when i’m thinking about splitter with pi/4 phase shift, i’m thinking about coupled line coupler or its waveguide analogue, but i come from microwave land on this one. maybe this works in fibers?

I'm not sure how you'd actually build a symmetric beam splitter: wikipedia said you'd need to induce a particular extra phase shift on both transmission and reflection. (I'm fully theoretical physics so I'm not too familiar).

[-] skillissuer@discuss.tchncs.de 2 points 1 year ago

pi/2, sorry

In microwave land we have something called rat race coupler which can be used as an in-phase 1:1 splitter. This thing can be manufactured in waveguides so maybe (narrowband) fiber optic implementation is possible

https://www.microwaves101.com/encyclopedias/rat-race-couplers

this post was submitted on 20 Nov 2023
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