“making some types of errors is the most rational thing to do, when the errors are of little cost, as they lead to discoveries. For instance, most medical “discoveries”are accidental to something else. An error-free world would have no penicillin, no chemotherapy…almost no drugs, and most probably no humans. This is why I have been against the state dictating to us what we “should”be doing: only evolution knows if the “wrong”thing is really wrong, provided there is skin in the game to allow for selection.”