Stathis Papaioannou wrote:
> Brent meeker writes (quoting SP):
>>> Every physical system contains if-then statements. If the grooves on the
>>> record were different, then the sound coming out of the speakers would also 
>>> be
>>> different.
>> That's not a statement contained in the physical system; it's a statement 
>> about
>> other similar physical systems that you consider possible. You could as well
>> say, (print "Hello world.") contains an if-then because if the characters in 
>> the
>> string were different the output would be different.
> I don't see how you could make the distinction well-defined. 

That's my point.  Counterfactuals are defined relative to some 
which we suppose to be possibly different.  It's not so much that it's not well 
defined, but that it's aribtrarily defined.  So I think lz's point about 
requiring counterfactuals is the same as saying intelligence is relative to 
environment - a view with which I agree.  In the case of reproducing organisms 
organism/environment distinction is clear.  In a simulation it's not.

Brent Meeker

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