From the article, Khan lectures on things he knows nothing about. Is that the revolution in education everyone is so excited about? Getting teachers that don't know the subject matter? His background is math and engineering, his history knowledge he gets from movies and his biology, he gets from pondering. Charlatan, definition of.
Khan on history of D-Day: "if you’ve ever seen Saving Private Ryan it starts with this and it’s probably, you know, I’ve never been in, never been on . . . never stormed a beach, but I can imagine it is probably the most realistic re-enactment of what it was like to storm the beach at Normandy"
Khan on Entropy: In a recent talk he explained how he prepared for his lecture on entropy: "I took two weeks off and I just pondered it, and I called every professor and everyone I could talk to and I said, Let's go have a glass of wine about entropy.