On 09-05-2016 09:52, 'scerir' via Everything List wrote:
Saibal Mitra:
And this is the core of the disagreement, you say that the results are
already there, but in the MWI this is false. In the MWI the cat is not
either dead or alive before you open the box, the superposition has
become entangled with the environment, but both branches are relevant
until you get to know the result.
It seems (to me) interesting this quote from Nicolas Gisin "Against
Many-
Worlds",
ch. 4 of the paper ' Are There Quantum Effects Coming from Outside
Space-time?
Nonlocality, free will and "no many-worlds" '
http://arxiv.org/pdf/1011.3440.pdf
"On the contrary, I do not see any explanatory power in the many
worlds: it
seems
to be made just to prevent one from asking (possibly provocative)
questions.
Moreover, it has built in it the impossibility of any test: all its
predictions are identical
to those of quantum theory. For me, it looks like "cushion for
laziness"
(un coussin de paresse in French). And there is a second, decisive,
reason to
reject
the many-worlds view: it leaves no space for free will."
That's a philosophical argument against MWI. I.m.o. it is important is
to work within some given framework when discussing issues within that
framework. It's similar to how the old discussions about Maxwell's Demon
did not yield the deep insight about the relevance of information theory
in thermodynamics and statistical physics. Strange ideas can lead people
to rail against it and raise objections on e.g. practical grounds that
may have some merit but they distract from the fundamental issue raised
by the thought experiment. One then doesn't follow through the argument
to its logical end.
Saibal
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