> On 18 Jun 2018, at 05:02, Brent Meeker <meeke...@verizon.net> wrote: > > > > On 6/17/2018 5:20 AM, Jason Resch wrote: >> >> How do you explain the finite computational resources of a table-top quantum >> computer factoring a prime number in seconds when it would take a classical >> computer the size of the solar system 10^100 years to do the same >> calculation? >> >> David Deutsch notes that quantum computers present a strong challenge to >> defenders of single-universe interpretations, saying “When a quantum >> computer delivers the output of such a computation, we shall know that those >> intermediate results must have been computed somewhere, because they were >> needed to produce the right answer. So I issue this challenge to those who >> still cling to a single-universe world view: if the universe we see around >> us is all there is, where are quantum computations performed? I have yet to >> receive a plausible reply.” > > As Scott Aaronson pointed out the computation relies on interference effects > which means it all happens in one world - in spite of Deutsch's wishful > thinking.
It all happen in one multiverse. Worlds are just superposition of state, and those get into different branches, from the perspective of the observer. By looking at the S cat, I put myself in the superposition seing the cat dead + seeing the cat alive, in one world, if you want, but my consciousness still split on two different histories (assuming there is not cut or collapse). In any case, both Deutsch and Feynman got the quantum computation idea by taking the superposition of states has physically real and important, and both disbelieve in the collapse, which is not an interpretation, but an hardly intelligible physical axiom. Bruno > > Brent > > -- > 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 > <mailto:everything-list+unsubscr...@googlegroups.com>. > To post to this group, send email to everything-list@googlegroups.com > <mailto:everything-list@googlegroups.com>. > Visit this group at https://groups.google.com/group/everything-list > <https://groups.google.com/group/everything-list>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- 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 https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
