On 20 Jan 2014, at 10:46, Russell Standish wrote:
On Mon, Jan 20, 2014 at 09:46:11AM +0100, Bruno Marchal wrote:
On 19 Jan 2014, at 22:41, Russell Standish wrote:
I
think we should keep all options on the table, and look for
connections between them, as different techniques will provide those
derivations more easily or more difficult.
Keep in mind that the goal is not "doing physics", but solving the
mind-body problem (the hard problem of matter, and of
consciousness).
I thought the goal was figure out where physical law comes from.
No, that is the result. UDA should shows that to solve the mind-body
we have to explain where the physical laws come from. Of course you
can say that this was my meta-goal.
But I am interested in where the physical laws come from, because I
know it is the only (with mechanism) way to get light on the mind-body
problem.
My result, despite some possible radicalness, is still very modest: it
is a reduction of the mind body problem, into the problem of
explaining physics without assuming a physical reality (or explaining
physics from arithmetic).
With comp, solving the mind-body problem is equivalent with extracting
physics from arithmetic. This solves conceptually the problem of the
origin of the physical laws, *assuming comp*. With comp we know (or
should know) that physics originates in the personal relation that
universal numbers can have with all the others universal numbers.
Think about the effect of
the AdS correspondence with string theory.
AdS correspondence?
See http://en.wikipedia.org/wiki/AdS/CFT_correspondence for details,
but the point is that there are two distinct physical theories,
related by a duality, that are tractable in different domains, so
solution to one theory can be used to inform the other in domains it
is not tractable.
OK. This is what is interesting in string theory, or better "string
theories". They are already quantum simulators, and they simulated
each other by short representation theorem. But they are the same
theories, in the sense that they intend the same reality, with the
same prediction. It is of course nice that they have different range
of tractability. That makes them useful!
Bruno
--
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Prof Russell Standish Phone 0425 253119 (mobile)
Principal, High Performance Coders
Visiting Professor of Mathematics hpco...@hpcoders.com.au
University of New South Wales http://www.hpcoders.com.au
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