and just you know, thinks with his amygdala. and to go back to the point-- . >> rose: you may know more about brain science than many of us. >> it's the center in your brain that controls-- . >> rose: it is the first reference in a political discussion. as you know i do a series on the brain. but yours is the first reference to the amygdala in terms of a political consideration, but go ahead. >> instinct, emotion, you know, very little kind of conscience intellectual thought. and going back to amy's point about australia, turning to china and other countries, turning to china, this is is another point where trump, the great negotiator has, you know, handed over the whole deck of cards to the other side by getting rid of tpp and giving china everything it wants. >> and to julia's question, is there a difference ultimately in how those are played out, the playout, the overthinking and the underthinking. i would say yes, in terms of how interlocketters respond. if you think somebody is overthinking, you think too. and you engage in