You can see this in universities. On one hand the stupidest people in universities are the students in the psychology departments. That is those are the students and teaches with the lowest IQ. They mostly have two digit IQs. But among the smartest are in the Philosophy departments. [They are not the smartest which are the Physicists.] But in the philosophy department you see this phenomenon that Rav Nahman talks about. They are too smart. At some point the smartness takes them off on some crazy tangent.
Even in Physics it is not the smartest that make the greatest advances. Anything more than an 150 IQ is detrimental. The super IQ people that get on game shows are never the ones that make real advances.
