On 24/06/2016 3:32 am, Bruno Marchal wrote:
On 23 Jun 2016, at 03:01, Bruce Kellett wrote:
..... if physics can be seen as possible a simulation run by some
alien civilization, then physics is certainly Turing emulable.
Which is not the case. The alien can fail us only for a finite time.
Prove that without assuming computationalism. What in our physical world
is not Turing emulable? What could not be simulated by an alien running
a simulation on a physical computer? Prove that we are not brains-in-a-vat.
Or maybe computationalism is the same as brains-in-a-vat --
consciousness and the physical world are both merely illusions.
Bruce
I explain that to Brett Hall: but computationalism makes it possible
to see if we are in a normal emulation, or at the physical bottom, the
things which is the first person sum on all emulations (by the FPI).
The phenomenal physics is not entirely Turing emulable, but that might
be no more than the presence of a random oracle on some
near-equivalent computations.
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