On 30 October 2014 05:50, John Clark <johnkcl...@gmail.com> wrote: > On Tue, Oct 28, 2014 at 8:26 PM, meekerdb <meeke...@verizon.net> wrote: > > > If "recombine" just means exhibiting interference then I'd say it's just >> a semantic quibble. When a photon goes thru both of Young's slits and >> interferes with itself I'd say that happens in one world. >> > > The universe splits because there is a difference between them, the > photon (or electron) goes through the left slit in one universe and the > right slit in another universe. If after that the photons hit a > photographic plate (or just a brick wall) both photons are destroyed and > there is no longer any difference between the 2 universes so they > recombine, but if we examine history we will see evidence that the photon > went through the left slit only and evidence that it went through the right > slit only and this causes interference bands. If we hadn't put a > photographic plate (or a brick wall) in the photon's path and just let them > continue into infinite space the 2 universes would always be different and > so never recombine. For statistical reasons we only see interference if the > 2 universes are almost identical; although it's logically possible that the > universe where Lincoln was not assassinated and our universe could both > evolve into a state that was identical and so recombine and cause > interference it's astronomically unlikely. Actually astronomically is far > too weak a word but infinitely is too strong, this my be the very rare > occurrence where a new word might be useful. > > Nicely summarised. In other words any such phenomenon is a split - including the operation of a quantum computer - and some splits can recombine (especially if we arrange things so they do).
I didn't think a "superposition" made sense in Everett because it implies both objects exist in the same (sub)universe. -- 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/d/optout.
