On Thursday, May 24, 2018 at 4:28:58 AM UTC, Brent wrote: > > > > On 5/23/2018 9:17 PM, [email protected] <javascript:> wrote: > > In the MWI interpretation there is no reason to preference one over the >> other with the honorific of "exists". They are just projective subspaces >> that are essentially (FAPP) orthogonal to one another. >> > > I can buy that, although tentatively, with difficulty, until I see the > mathematics which demonstrates it. AG > > >> Each one includes copies of the system, the environment, and the >> observer(s) which is necessary so that it constitute a classical "world" in >> which everyone agrees on the result. >> > > This I absolutely CANNOT buy, as I have explained numerous times. Cannot > decoherence and the MWI have descriptive value without all of this COPYING > being assumed, which I find outlandish? Would it be fatal to any of these > concepts to affirm that the entanglements which occur in these subspaces > are equivalent to measurements in these subspaces? AG > >> > It's fine if you just assume the other subspaces vanish as far as doing > physics. Metaphysically it's problematic because you've used a certain > theory up to that point which predicts that all the subspaces are equally > real (and may be more probable than the one you experience) and there are > copies of you and your lab etc which are equally real and now you're going > to stop using that theory which was so amazingly successful...why? > > Brent >
The other subspaces don't vanish. They continue to exist and all possible measurements are in fact measured according to my proposal. But the subspace in which the observer exists seems apriori different and more significant in terms of physical reality; it's the environment in which all entanglements of all subspaces come into being. It seems metaphysically problematic to give all subspaces the same existential status, when only one provides the environment for all entanglements for all subspaces. AG -- 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.
