Re: reasoning under computational limitations

Nick Bostrom (
Sun, 11 Apr 1999 15:52:26 +0000

Wei Dai wrote:

> I understand rationality to be in part a constraint on beliefs. When you
> say "rational probabilities in such a case are indeterminate", do you mean
> that a rational person can have arbitrary beliefs in such a case (ie
> rationality places no constraint on such probabilities), or that he should
> assign "indeterminate" to such probabilities?

The former.

Nick Bostrom Department of Philosophy, Logic and Scientific Method London School of Economics