You know, it's hard for me to simultaneously think of someone as winning and not a rationalist, not to mention always correcting the result by 'my definition'. I could say that the confirmation bias is at fault, but really... Shouldn't we just dissolve the questions?:) I mean, suppose I do know a person who has trouble letting sunk causes go, and has probably firmly forgotten about the Bayes theorem, and uses arguments as soldiers on occasion... But she is far more active than me, she keeps trying out new things, seeking out jobs even beyond her experiences etc. Should I consider her rational? I don't know. Brave, yes. Rather smart, yes. Winning, often. But rational?