I won't argue that the guy is a very talented and eloquent speaker. My point is different: he may be very erudite, but the depth of his knowledge in any of the subjects he's teaching (except maybe some subjects in EE and finance) is not going to compare with that of professors in the respective fields. Certainly, the fact that he's addressing these subjects at high-school level, does a lot to level the field for him.
By the way, I'm not sure how listing his credentials is supportive of your claim that "his ability to teach far outperforms the majority of university professors."
Finally, it's not the anonymous 'majority of university professors' that I'm comparing him to, but the top people in their fields at the top American universities. Those people must excel both in research and teaching, otherwise they simply don't make it there.
By the way, I'm not sure how listing his credentials is supportive of your claim that "his ability to teach far outperforms the majority of university professors."
Finally, it's not the anonymous 'majority of university professors' that I'm comparing him to, but the top people in their fields at the top American universities. Those people must excel both in research and teaching, otherwise they simply don't make it there.