On 20 Dec 2013, at 16:48, Richard Ruquist wrote:


Origin of probabilities and their application to the multiverse

Andreas Albrecht, Daniel Phillips
(Submitted on 5 Dec 2012)
We 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.

Richard: I cannot copy over the relevant portions of the text. They conclude:

"thus are very skeptical of multiverse theories that depend on classical probabilities for their predictive power".

 Is it a snooker? Does not MWI use quantum probabilities?
It might be worth a read.

They assumed QM, and physicalism, which are not available options once we assume computationalism. MWI somehow does bring back classical probability, from the quantum, making it into an ignorance about the computations which bear our actual relative state, in the comp theory.



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