On 11/15/2024 5:08 AM, John Clark wrote:
On Fri, Nov 15, 2024 at 3:23 AM Alan Grayson <[email protected]>
wrote:
/> Suppose we assume Bell experiments establish that Bell's
inequality is violated,/
*We don't need to assume that,thanks to experiment, we know for a fact
that Bell's inequality is violated.*
/> and that this can be interpreted to mean that hidden variables
do not exist/.
*No! It can _NOT_ be interpreted in that way, the violation of Bell's
Inequality proves that _LOCAL_ hidden variables do not exist _IF_ the
universe is realistic and deterministic.
*
How did "deterministic" get in there. Bell's inequality is violated
even if there is a local shared random variable.
Brent
/> Does this statement, if true, establish that Realism is false?/
*No, the meaning is more subtle than that. It establishes that realism
*might* be false, and it establishes that if realism is true then the
world can't be both deterministic and local. In Many Worlds realism is
false but that's why the violation of Bell's Inequality does not prove
it's correct, it only proves that it might be correct. *
*
*
/> By Realism, I mean the belief that the measured result of some
property of a measured entity pre-exists the measurement./
*The precise definition of realism is that one and only one specific
set of properties pre-exists the measurement, although some people,
such as Roger Penrose, don't think that caveat is necessary because
the Many Worlds idea is a Reductio ad absurdum on it's very face and
thus not even worth thinking about. I respectfully disagree with Sir
Roger about that.*
*
*
*John K Clark See what's on my new list at Extropolis
<https://groups.google.com/g/extropolis>*
prs
*
*
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