[ckastner]

> It's way faster to learn by yourself than from someone teaching you because you can go directly to what you need to understand etc.

That is a pretty weak conjecture, I think. I can think of a ton of issues where the fastest way is almost certainly having the guidance and counsel of a great teacher.

Sure it's possible to teach yourself calculus, relativity theory, or even QED. I find it highly doubtful though that any student of Feynman's, for example, would have learned faster in self-study than from sitting in his class.