[FRIAM] Free will—ghost in the machine or just clever wiring?

Santafe desmith at santafe.edu
Mon Jun 9 15:35:53 EDT 2025


> On Jun 10, 2025, at 3:44, Pieter Steenekamp <pieters at randcontrols.co.za> wrote:
> 
> I'll let George answer:
> EPR refers to the Einstein-Podolsky-Rosen paradox, a 1935 thought experiment by Einstein, Podolsky, and Rosen. It challenges the completeness of quantum mechanics by showing that, under its rules, two particles can become entangled—so that measuring one instantly affects the other, no matter how far apart they are.
> 
That’s an incorrect use of English to refer to what the math actually says.  At least here, George isn’t hallucinating; they is (we have to use that for the AI, no?) repeating the nonsense people say.

The specific error is “affects”, which is a causation-related word.  Causation remains consistent with timelike separations within relativity, and if we convert its math properly into English we also should not use expressions like “faster-than-light signal”, as there isn’t any “travel” process in that geometry to be referred to as “faster-than-light”.  What there is in the EPR experiment is prior correlation in the state vector, which propagates by perfectly proper causality to both observers, and which can be reported out in an unfolding “knowledge about” the values correlation functions will take as one or the other of them performs a measurement.  

Scott Aaronson, thankfully, translates math into English that says the same thing.  One can start on p.41 and then go to the next lecture, though some flashback will be needed here and there to define terms he is just using by p.41:

https://www.scottaaronson.com/qclec.pdf


Eric
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