MWI is a fully deterministic theory, but it is not the
only deterministic theory consistent with QM.

I believe that 't Hooft's theory is more natural from the point of view that
universes are programs. It is hard for me to understand how you get
interference between ``nearby´´ universes or programs. According to 't Hooft
QM would arise in a ``single universe´´

References:

[1] Quantum Gravity as a Dissipative Deterministic System

http://arxiv.org/abs/gr-qc/9903084

[2] Determinism in Free Bosons

http://arxiv.org/abs/hep-th/0104080

[3] How Does God Play Dice? (Pre-)Determinism at the Planck Scale

http://arxiv.org/abs/hep-th/0104219

[4] Quantum Mechanics and Determinism

http://arxiv.org/abs/hep-th/0105105


----- Oorspronkelijk bericht -----
Van: "Bruno Marchal" <[EMAIL PROTECTED]>
Aan: <[EMAIL PROTECTED]>
Verzonden: vrijdag 12 juli 2002 17:30
Onderwerp: Copenhagen interpretation


> Saibal wrote:
>
>
> >This all assumes that photons, electrons, etc. are real. We don't know
that.
> >If you were Einstein, and you were faced with Bell's result, you could
have
> >concluded that the nonexistence of local hidden variables implies that
> >elementary paricles don't exist. They are mere mathematical tools to
compute
> >the outcome of experiments. The real underlying theory of Nature could be
> >still be deterministic. Recently 't Hooft has shown how QM can emerge out
of
> >a deterministic theory. In this case QM has to be interpreted according
to
> >the Copenhagen interpretation.
>
>
>
> But QM-without-collapse *is* a fully deterministic theory.
> In QM-without-collapse the indeterminism is a first person
> indeterminism quite comparable to what appears in classical
> self-duplication process (if I may repeat myself).
> It seems to me that 't Hooft theory is very speculative,
> but then I am not sure I fully understand it, for sure.
>
>
> Bruno
>
>
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