On 5/4/2022 12:27 PM, smitra wrote:
fact, that idea introduces a raft of problems of its own -- what is
the measure over this infinity of branches? What does it mean to
partition infinity in the ratio of 0.9:0.1? What is the mechanism
(necessarily outside the Schrodinger equation) that achieves this?
That simply means that there is as of yet no good model for QM without
the Born rule.
But there is no mechanism for the Born rule. It is inconsistent with
pure Schroedinger evolution of the wave function. I think the problem
of measures on infinity is overcome if you simply postulate a very large
but finite number of branches to split. Or why not not an continuum
probability and just measure by the density around the eigenvalue...the
measured values are never exact anyway. I don't these things are wrong
or show MWI is inconsistent, but I think they show it has just moved the
problems it purported to solve off to some unobservable worlds, which is
no better than CI.
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