question is on which probability distribution do you base that if I have the true probability distribution like say I play backgammon right there's dice and there's certain randomness involved you know I can calculate probabilities and feed it in the expecting max or the signatures eg come up with the optimal decision if I have enough compute but in the before the real world we don't know that you know what is the probability you drive in front of me brakes and I don't know you know so depends on all kinds of things and especially new