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 > > > ------------------------ Yahoo! Groups Sponsor ---------------------~--> > Save on REALTOR Fees > http://us.click.yahoo.com/Xw80LD/h1ZEAA/Ey.GAA/pyIolB/TM > ---------------------------------------------------------------------~-> > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > >
