Hmmm. If Goldbach's conjecture is true (and provable), the program will loop 
forever and is provably non-intelligent. If it's false, there's a 
counterexample and it's intelligent. (Assuming you mean by "halt" to go on to 
the AIXItl part). The overall program is only a stumper if Goldbach is 
undecideable. 

Perhaps a better example would be a program that applied the formal definition 
of intelligence to its own code, then running Eliza if the result said 
intelligent and AIXItl if the result said non-intelligent.

Josh


On Tuesday 15 May 2007 01:36:21 pm Eliezer S. Yudkowsky wrote:
> Shane Legg wrote:
> > 
> > Thus I think that the analogue of Gödel's theorem here would be
> > something more like:  For any formal definition of intelligence
> > there will exist a form of intelligence that cannot be proven to be
> > intelligent even though it is intelligent.
> 
> With unlimited computing power this is obvious.  Take a computation 
> that halts if it finds an even number that is not the sum of two 
> primes.  Append AIXItl.  QED.
> 
> -- 
> Eliezer S. Yudkowsky                          http://singinst.org/
> Research Fellow, Singularity Institute for Artificial Intelligence
> 

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