- #246
Mathematech
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Further subtle points about Fine's result http://www.jstor.org/stable/187655
Gisin's definition of "realism" kind of reminds me of the epigenetic modifications of the genome by environment, except for the non-locality.Mathematech said:Yeah I read that sentence and decided I needed another cup of coffee before attempting it again
Interesting comment since such a paper was recently published that kind of argues this:gill1109 said:Why should probability not ontologically exist? What kind of prejudice is that? I think quantum mechanics is telling us that it does exist, despite our intuition or instinct to the contrary. Our brains evolved and led us from success to success by hard-wiring in us a belief that nothing happens without a cause... this belief worked just fine, till we ran up against quantum mechanics.
Origin of probabilities and their application to the multiverseWe argue using simple models that all successful practical uses of probabilities originate in quantum fluctuations in the microscopic physical world around us, often propagated to macroscopic scales. Thus we claim there is no physically verified fully classical theory of probability. We comment on the general implications of this view, and specifically question the application of classical probability theory to cosmology in cases where key questions are known to have no quantum answer.
bohm2 said:Why should probability not ontologically exist? What kind of prejudice is that? I think quantum mechanics is telling us that it does exist, despite our intuition or instinct to the contrary. Our brains evolved and led us from success to success by hard-wiring in us a belief that nothing happens without a cause... this belief worked just fine, till we ran up against quantum mechanics.
Generally, Bohmian models would seem to require a preferred rest frame for non-local correlations but Demystifier (Hrvoje Nikolic) our resident Bohmian expert on this forum has published a Bohmian model compatible with relativity. He does it by treating time on an equal footing with space and his model does not involve a preferred Lorenz frame. Some of his stuff can be found here:stevendaryl said:On the other hand, if there secretly were a universal time, then you could have an ordinary stochastic evolution based on that universal time. I'm not sure how the Bohm theory generalizes to relativistic quantum mechanics. Does it use a preferred rest frame for the nonlocal quantum interactions?
Causally Symmetric Bohm modelA version of Bohm’s model incorporating retrocausality is presented, the aim being to explain the nonlocality of Bell’s theorem while maintaining Lorentz invariance in the underlying ontology. The strengths and weaknesses of this alternative model are compared with those of the standard Bohm model.