On 07 Feb 2012, at 07:11, meekerdb wrote:
On 2/6/2012 9:55 PM, acw wrote:
On 2/7/2012 05:08, meekerdb wrote:
while the other gives you a simple view, but it also tells you that
there's more than you can see. Some people seem bothered about this
'more' part, especially if it's not obviously accessible (although
I'd debate this being the case with COMP).
I'm not bothered, but neither am I convinced. The branches of the
MWI are not obviously accessible and in fact they are not accessible
at all. I wouldn't say that rules them out - but it doesn't count
in their favor.
The branches comes from the superposition, and their linear contagion
which is unavoidable if we postulate that QM applies to the physical
in general. So the branches are not accessible through interaction,
but they are still accessible through the interferences, and
extrapolating QM on the observers. To avoid the parallel branches we
must add something to QM (like the collapse), and this can be made
only by assuming that something (measuring apparatus, macro-object,
consciousness?) does not obey to QM.
With comp, things are even more simple (conceptually): the (finite
pieces of) parallel computations exist like prime number or total
computable functions exist, in a weak common sense of mathematical
existence, and the statistical interferences comes from the first
person indeterminacy, and the shapes it has to take with the self-
referential correctness constraints.
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