This is an excellent point. The whole thing becomes recursive pretty easily, at which point all of life succumbs to the halting problem. Most of the time we hav

This is an excellent point. The whole thing becomes recursive pretty easily, at which point all of life succumbs to the halting problem. Most of the time we have to take our best guess and hope for the best. Still, when attempting to learn from the past, usually after more information has become available, assessing how one did or did not affect those probabilities can be highly valuable in making better guesses in the future.