In fact, I saw Robin Williams recently talk about how he thought he was much funnier when he was doing cocaine, when he had that issue, than now. So perhaps more dopamine is related to more creativity. Dopamine, I think, changes our signal-to-noise ratio. That is, how accurate we are in finding patterns. If it's too low, you're more likely to make too many Type II errors. You miss the real patterns. You don't want to be too skeptical. If you're too skeptical, you'll miss the really interesting good ideas. Just right, you're creative, and yet you don't fall for too much baloney. Too high and maybe you see patterns everywhere. Every time somebody looks at you, you think people are staring at you. You think people are talking about you. And if you go too far on that, that's just simply labeled as madness. It's a distinction perhaps we might make between two Nobel laureates, Richard Feynman and John Nash. One sees maybe just the right number of patterns to win a Nobel Prize. The other one also, but maybe too many patterns. And we then call that schizophrenia.