Stephen, Ronald,
The paper is very interesting, on physics, but succumbs directly from
the argument that any digital physics is bound to be unsuccessful on
the mind-body problem by being still physicalist. The body problem is
a problem of computer science, that is arithmetic, once we bet that
observer are Turing emulable, as they should if the physics is digital.
If the universe is a computation, then comp is true. But comp implies
that the universe cannot be a computation (by UDA). So the universe is
a computation implies that the universe is not a computation. So the
universe is not a computation, whatever it can be. This defeat
Finkelstein, Schmidhuber, Fredkin, and all attempts to conceive the
physical universe as a computation, or output of a computation.
This does not mean that the paper does not have interesting ideas on
the unification of known forces in physics, and that "quantum
graphity" might be a good idea, but if correct, such idea have to be
recovered from the (more ambitious) attempt to get a unification of
both qualia and quanta (consciousness and matter). The authors have
still not integrate the mind-body problem. We are still much in
advance on this list :)
Bruno
On 18 Jan 2012, at 14:53, ronaldheld wrote:
I found this at arXiv:1201.3398v1 [gr-qc] 17 Jan 2012. Any comments?
I have just started to read it.,
Ronald
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