<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><br><div><blockquote type="cite"><div>On Jun 10, 2025, at 3:44, Pieter Steenekamp <pieters@randcontrols.co.za> wrote:</div><br class="Apple-interchange-newline"><div><div dir="ltr">I'll let George answer:<br><p>EPR refers to the <strong>Einstein-Podolsky-Rosen paradox</strong>, 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 <em>entangled</em>—so that measuring one instantly affects the other, no matter how far apart they are.</p></div></div></blockquote><div>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.</div><div><br></div><div>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. </div><div><br></div><div>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:</div><div><br></div><div><div style="display: block;"><div style="-webkit-user-select: all; -webkit-user-drag: element; display: inline-block;" class="apple-rich-link" draggable="true" role="link" data-url="https://www.scottaaronson.com/qclec.pdf"><a style="border-radius:10px;font-family:-apple-system, Helvetica, Arial, sans-serif;display:block;-webkit-user-select:none;width:300px;user-select:none;-webkit-user-modify:read-only;user-modify:read-only;overflow:hidden;text-decoration:none;" class="lp-rich-link" rel="nofollow" href="https://www.scottaaronson.com/qclec.pdf" dir="ltr" role="button" draggable="false" width="300"><table style="table-layout:fixed;border-collapse:collapse;width:300px;background-color:#E5E6E9;font-family:-apple-system, Helvetica, Arial, sans-serif;" class="lp-rich-link-emailBaseTable" cellpadding="0" cellspacing="0" 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