On 02 Jan 2012, at 07:01, meekerdb wrote:
On 1/1/2012 4:59 PM, Pierz wrote:
Everett's MWI is based on QM which does assume a background time and
the state of the multiverse evolves in Hilbert space. This
evolution entails the evolution of the state of different observers
which are simultaneous.
Not to wish to pre-empt Bruno's reply, but I think you're mixing
up 1->>> p and 3-p. From 3-p, all branches are conscious, but I
only experience>>> myself on one branch at a time,
probabilistically according to the>>> measure of computations.
There's no individual soul, just in one sense>>> a single
consciousness that experiences every possible state.> That
seems incoherent to me. How is it different from there are
many> experiences? "I" is just a construct from a subset of
experiences and there> can be many different subsets from which
many different "I"s can be> constructed. But I don't know
what it would mean to say there is just> one "I" or to say that
"I" can jump from one thread of experience to> another. That
would presuppose that consciousness, the "I", is something>
apart from the experiences it jumps to.
David says it better than I could have, but just to add that when I
say "I" that is just a sort of short-hand for the 1-p perspective.
There is no separate experiencer. In UDA, it's simply the notes in a
'diary', some verifiable record of that branch of the computational
histories. There isn't really a 'jumping' of anything, there are just
these different computational branches. And in saying there's one
consciousness that experiences every possible state, that doesn't
imply experiencing them simultaneously. That theoretical objective
vantage point, seeing all histories, is the privilege of God perhaps,
or no-one. (Don't jump on me about the God bit, there's obviously no
God in an arithmetical ontology). Also, just to note that this is no
more incoherent than Everett. Many Worlds implies the same view of
This is due to the fact that Everett QM is non relativistic. It is a
methodological simplification. The "true Everett QM" should be based,
at least, on a theory handling gravitation (and thus space-time) in
the quantum frame. With string theory we keep some space and time
background, which makes me think it is not the "real" theory. With
loop gravity, or alike, there is a chance to get the correct
quantization of space and time, and those should appear as pure
quantum phenomena. Of course, I think that with comp the whole
physicalness is a proto-quantum reality, with "proto-quantum" being
related to the qualia-quanta computationalist unification.
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