ASK HIM ANYTHING: Tony spends egregious amounts of time poring over bizarre conversations on Reddit. So he's pretty happy to have found this little gem: an AMA with the founder of Khan Academy. (That's "Ask-Me-Anything" for those unfamiliar with the lingo.) A lot of pretty down-to-earth responses from Sal, from his favorite books to how much time he spends on each video, and hints of expanding to topics like quantum mechanics.
