On 8/13/06, Pei Wang <[EMAIL PROTECTED]> wrote:
Shane,

I don't think the statement "the universe is computable" can either be
proved or disproved, because it is not a mathematical statement.
However, there can be evidence for or against it.

Agreed.  To date there is no evidence against it, and the entire field
of standard physics for it.  That's a lot of evidence on one side, and
no evidence at all on the other.  Thus it is pretty reasonable to make
the assumption that the environment is computable when doing this
kind of work.

Secondly, while one cannot prove that the whole universe is computable,
the observed universe to date has proven to be computable to a very high
degree.  Thus, even if this assumption was violated, it would still hold for
much of the universe and to a very high degree of accuracy.  Clearly then
any AI based on the computable universe assumption would still continue
to work perfectly well on most of the universe. 


My objection is not any one you anticipated,

I didn't expect you to use one of the ones I listed, that's why I
said "before others jump in"... ;-)

Shane


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