You might die before you meet some matrix lord, you know. Fire alarm wise, you're in the clear. And if you have #1, it's not pascal's mugging situation, it's "your utility function does not work at all" situation, you need to either use bounded utility or use speed prior (which makes priors for that smaller).

edit: and even if your priors are correct, you're still facing the problem that your sums are not complete.