he seems to cover most of the same points in his lecture and book. but imo the book is a lot better organized. also the footnotes are insanely useful. in the lecture he mentions 1st, 2nd, and 3rd hands of the economy but doesn’t explain. in the book there’s a footnote explaining the 1st hand is Adam smiths invisible hand (individuals acting in self interest leading to optimization), the 2nd hand is government regulation, and the 3rd hand is state-owned enterprises. then again, i was just listening while driving and his presentation slides might have explained that.