On 30 October 2014 05:50, John Clark <[email protected]> wrote: > On Tue, Oct 28, 2014 at 8:26 PM, meekerdb <[email protected]> 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
