On 18 Oct 2013, at 22:45, Jason Resch wrote:

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On Fri, Oct 18, 2013 at 11:37 AM, meekerdb <meeke...@verizon.net>wrote:On 10/18/2013 12:42 AM, Jason Resch wrote:But that's not compatible with Bruno's idea of eliminating thephysical - at least not unless he can solve the basis problem.Could you do me a favor and explain what the basis problem is in away that a 6th grader could understand? I've found all kinds ofthings said on it, and they all seem to be asking different things.For physicists, it's part of the problem of explaining the emergenceof the classical world from the quantum world. Decoherence candiagonalize (approximately) a reduced density matrix IN SOME BASIS.Is this the same basis as in "momentum basis" and "position basis",or is it some other usage of the term?Forgive my ignorance, but what does it mean to "diagonalize areduced density matrix"?Being diagonal in one basis means it's superposition in someother basis. So for physicists the problem is saying whatprivileges or picks out the particular bases we see in experiments.Why do our instruments have needles that are in eigen states ofposition, while some other things (e.g. atoms) are in eigen statesof energy or eigen states of momentum. For physicists there aresome suggestive, but not fully worked out answers to thesequestions, e.g. you get position eigenstates because the interactionterm of the Hamiltonian is a function of position. But thoseanswers assume the physics. If you want to reconstruct physics fromexperiences, you can't borrow the physical explanation to say whyyour experiences are classical.I think the assumption that experiences are classical comes from theclassicality of Turing machines (which are the supposed mechanism bywhich experiences are manifest).

`Yes. the goal is to explained the feelings, and the quantum, from the`

`classical theory of thought (George Boole) and self-reference (Gödel,`

`Löb, ... well sum up in George Boolos's books).`

Quantum physics also assumes classical arithmetic. Bruno http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.