On 1/22/2014 2:00 AM, LizR wrote:
On 22 January 2014 16:34, meekerdb <meeke...@verizon.net <mailto:meeke...@verizon.net>>
wrote:
On 1/21/2014 4:50 PM, LizR wrote:
It seems to me that differentiation is local, and spreads slowly, and
that there
is always going to be some remerging (but only in proportion to the
chances of
entropy reversing). The an atom starts in a superposition of decayed and
non-decayed. Now a cat is in a superposition of alive and dead. Now an
experimenter is in a superposition of having seen an alive and dead
cat... now
everyone who reads "Nature" is in a superposition ... but none of this
affects
Jupiter for a long time,
Does it? Suppose there's an electron on Jupiter that was entangled in a
singlet
state with an electron on Earth and the electron on Earth just got it's spin
measured? MWI may be able to model this with a local hidden variable, but
in THIS
world it looks like FTL influence - and it can go a lot further than
Jupiter, e.g.
the CMB.
Assuming this is correct then the "snapshot" theory of how the MWI operates looks more a
lot likely. (I was given to believe by David Deutsch that differentiation only occurred
patchily, and spread slowly, but I've known him to be wrong...)
Please explain further. How does an electron on Jupiter get entangled with one on Earth,
and how does anything on Earth get entangled with the CMB?
By having interacted in the (distant) past. If the universe is a pure quantum state then
it has zero entropy, which means that all the complexity and information we see is a local
phenomena due to our being quasi-classical, i.e. we are effectively 'coarse graining' the
world. From this standpoint the positive information we see must be cancelled by
correlations, negative information, which are ubiquitous.
Brent
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