BruceK and Smitra, my apologies for being obsolete and uninformed, I learned math & phsx in the very early 40s (19- that is) and did not need to refresh in my 1/2 c. of a successful R&D activity in specialty polymers. Since then (1987), however, I became an agnostic. What reverberates now is that Everett called MWI a bunch of IDENTICAL universes. In my agnostic view "MY" MWI consists of possibly no two identical universes, ours being one pretty simpleminded system - we know it only from the inside. We have no access to the others.
John Mikes Ph.D. (chem-phys-math 1948) On Tue, May 10, 2016 at 6:39 PM, Bruce Kellett <[email protected]> wrote: > On 11/05/2016 1:54 am, smitra wrote: > >> On 10-05-2016 06:04, Bruce Kellett wrote: >> >> Non-locality was not the issue with this example of the cat in the >>> box. All I was seeking to establish was that the observer maybe on >>> definite branches of the wave function (i.e., have been "split") >>> without knowing about it. The wave function here is taken to be an >>> objective description of the system, and the observer is part of the >>> wave function. So the observer might well be on both the cat-dead and >>> cat-alive branches, but be unaware of which. The cat is definitely >>> dead on the cat-dead branch and alive on the cat-alive branch. So this >>> is an objective fact of the evolved wave function, even thought the >>> observer has no yet self-located. Opening the box then conveys >>> information to the observer, but does not kill the cat, or cause the >>> split in the wave function, or the observer. The duplicated persons >>> may objectively be, one in Washington and one in Moscow, without being >>> aware of which city (branch of the wave function) they are in. Opening >>> the door and finding out conveys information, but does not transport >>> the person to that city. >>> >> >> Yes, but even in the case of the observer getting localized without he or >> she consciously being aware of that, this localization effect will still be >> due to local interaction with the branches in the region he/she is in. So >> whether or not localization in a branch requires conscious awareness of the >> differences between the two branches isn't relevant. >> >> This means that when Alice is on her way to meet with Bob, she won't be >> localized inside Bob's branches corresponding to Bob having obtained >> definite results with definite polarizer settings, at least until that time >> she gets located inside the light cone emanating from the points at Bob's >> location at the times when the relevant information about these facts were >> created. >> > > So what? The information is already present in the wave function-- nothing > new is created when the light cones overlap. > > Bruce > > -- > 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 https://groups.google.com/group/everything-list. > For more options, visit 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
