The question is whether a whole universe is created for each state in a superposition. Deutsch seems unequivocal that it is. I'm just questioning a) whether that's what he really means and b) whether that is necessary. It's necessary that that local states be able to decohere, but that doesn't to me seem to necessitate the duplication of the entire universe. The splitting can be a diversion of information states at an entirely local level, mediated by local interactions. The multiverse only needs to be big enough to accommodate the information required at each local branch point. Why bring the whole rest of the universe into it?
On Tuesday, January 21, 2014 3:01:13 PM UTC+11, yanniru wrote: > > My understanding is that a different universe really means a different > spacetime. > > On Mon, Jan 20, 2014 at 10:53 PM, LizR <liz...@gmail.com <javascript:>>wrote: > >> Yeah, I believe that's how it's supposed to work. They're all in the same >> background spacetime but once detangled have no influence on each other. >> (However a TOE might have something to say about "background spacetime") >> >> >> On 21 January 2014 16:45, Richard Ruquist <yan...@gmail.com <javascript:> >> > wrote: >> >>> I prefer a theory where every superimposed quantum state is realized >>> physically but in the same spacetime. >>> Is that theory feasible and does one already exist? >>> >>> >> >> -- >> 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-li...@googlegroups.com <javascript:>. >> To post to this group, send email to everyth...@googlegroups.com<javascript:> >> . >> Visit this group at http://groups.google.com/group/everything-list. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- 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.
