cousin_it comments on Re-formalizing PD - Less Wrong

28 Post author: cousin_it 28 April 2009 12:10PM

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Comment author: brianm 30 April 2009 11:12:08AM *  1 point [-]

Ah sorry, I'd thought this was in relation to the source available situation. I think this may still be wrong however. Consider the pair of programs below:

A: return Strategy.Defect.
B: if(random(0, 1.0) <0.5) {return Strategy.Cooperate; }
while(true)
{
if(simulate(other, self) == Strategy.Cooperate) { return Strategy.Cooperate; }
}

simulate(A,A) terminates immediately. simulate(B,B) eventually terminates. simulate(B,A) will not terminate 50% of the time.

Comment author: cousin_it 30 April 2009 11:56:40AM 0 points [-]

Yes, you're right. Thanks!

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