A good basian up dates beliefs based on evidence. Doesn't that require the basian to be a hundred per cent confident in the evidence? I suppose there are extensions of basian theorems to account for this. But then you need additional evidence to believe the initial evidence. Have you seen any discussions on how to address this problem? A philosophical issue has occurred to me, and i'm not quite sure what the answer is. Murray canter asks a priority question. For those patrion supporters asking the questions, i guarantee i will answer it. The catch is that you only get to ask one priority question in your life.