Nick Prince wrote:
OOps sorry I sent an empty post by accident.
I agree with you here. But I am new to this field so I am uncertain
about so many things. However, I don't understand why it is that a
UD would know how to generate these law like sequences of states. It
may well generate all possible programs that generate all possible
universes (with different values for the physical constants say -
maybe even different laws) but I wonder why our conciousness defines
itself by "selecting" only those "consistent" extension among all the
states available that obey a certain set of laws of physics.
I thought that a TOE should explain the laws of physics and Bruno
states in his SANE paper
" Conclusion: Physics is given by a measure on the consistent
computational histories, or
maximal consistent extensions as seen from some first person point of
But consistent in what sense? We can't say "consistent with the laws of
physics" because that's what we're trying to explain.
Laws of physics,
in particular, should be inferable from the true verifiable ‘‘atomic
sentences’’. Those are the
verifiable arithmetical sentences.
I understand true arithmetical sentences, but I'm not sure what
'verifiable' means? Does it mean computable, or provable? What's an
atomic sentence? Is it just a finite statement, like "17 is prime"; so
it excludes infinite statements like Goldbach's conjecture?
They should be true everywhere (=
in all comp histories),
true somewhere (= true in at least one comp history), and inferred
from the DU-accessible
It feels a bit lie a chicken and egg situation - do we pick out the
laws or do they pick us?. But I am still working my way through this
and and loads of other stuff, so I don't understand it yet.
On Jan 5, 6:59 pm, Brent Meeker <meeke...@dslextreme.com> wrote:
Nick Prince wrote:
Is this because you think of your stream of consciousness as somehow
like a reel of film? All the individual pictures could be cut from
the reel and laid out any which way but the implicit order is always
there. I can understand this because all the spatio temporal
relationships for the actors in the film remain "normal" i.e obey the
laws of physics.
But there's the rub. Why the laws of physics? That's what somehow
needs to be explained. Is there something about the UD that necessarily
generates law like sequences of states with high probability? Doesn't
it generate just those laws we seem to find - that would be a great
discovery. Or does it generate all possible non-self-contradictory
multiverses - in which case nothing has been explained.
Deutsch argues similarly in the Fabric of reality.
In my work I often come across the idea of a foliation of
hypersurfaces which is really a set of 3D pictures "stuck together and
stacked in the direction of the time coordinate of the world at a
given instant of time.
But that's starting with the physics given, so the hypersurfaces and
their relation is already defined.
In MW interpretation though I guess that the
stacking is less certain as in the block universe idea but that's
another issue. Is this analogy similar to how you feel the "obvious"
experience of time being normal?
Nick- Hide quoted text -
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