On 12/19/2020 10:38 PM, Bruce Kellett wrote:
On Sun, Dec 20, 2020 at 6:48 AM 'Brent Meeker' via Everything List
<everything-list@googlegroups.com
<mailto:everything-list@googlegroups.com>> wrote:
As far as I know, it was Born who came up with the interpretation
of the equations as expressing probabilities. But there was (and
maybe still is) controversy over whether this was irreducibly
random or whether there were hidden variables and it was just the
randomness of ignorance. For most physicists this was resolved by
the experimental confirmation of the violation of Bell
inequalities. At that point the choice was irreducible randomness
or nonlocal effects
That is not quite right. The choice is not between randomnesss and
non-locality. Non-local hidden variables (Bohm) do reduce the apparent
randomness to ignorance of the detailed quantum state, but at the
price of non-locality. Bell's result implies that non-locality is
unavoidable, and this has nothing to do with the presence or absence
of intrinsic randomness.
If there were not intrinsic randomness then the extra correlation of
that violates Bell's inequality could be used to signal faster than light.
Brent
It is only deterministic theories like MWI and Bohm that eliminate
randomness, but MWI does not solve the locality issue either. Besides,
MWI is incompatible with the Born Rule; and the Born rule, while
consistent with Bohm, cannot be derived from Bohmian mechanics.
Bruce
and most physicists saw randomness as the more likely, less
disruptive choice.
Brent
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