Eliezer, I do not mean to set my disagreements up as a model of rationality, nor to express much confidence in any particular reading of your disagreements. I mainly mean to call attention to the fact that on the surface both of our disagreements might be read as rationality or as tribalism - we need to dig deeper to discern the difference. Only if you insist that for one of us one of these theories is just not a plausible explanation would I persist in arguing for that plausibility.