I agree that it would have been nicer to see that issue addressed head-on. I think Karim is conflating the words unscripted and unprepared.
From what I understand, Khan keeps the videos unscripted so he can maintain more of a conversational style, but he's always careful to understand the material very well before doing a video on a subject.
From what I understand, Khan keeps the videos unscripted so he can maintain more of a conversational style, but he's always careful to understand the material very well before doing a video on a subject.