Teaching vs Doing

This is same as asking a teacher why he is teaching if he's so good at the subject.

Shortsighted people look at a teacher and say "You're only teaching! I should be learning from someone doing." Or a million other excuses.But when it comes down to it, everyone on this planet could teach at least one useful thing to anyone else.

If the guy doesn't know how he does it, what he has to say will not be very illuminating. To be able to teach, you have to understand why you are doing things the way you are doing them. It's surprising how many people are good at what they do, but still don't know why they do things a certain way, have not considered other ways and noticeably slow down when they leave their comfort zone.

Those who can't do, teach.

The best way to learn is teaching ...

I didn't state it would magically result in that...i'm sorry if that's what you inferred; however, i've found in the past that good people teaching about some subject tend to learn more about the subject in the teaching of said subject. Like anything else, teaching / mentoring / pairing are skills...those could be horrible as well.

Doing is not strictly better than teaching. You can do a lot without understanding what's really happening. You can't get away with that when you teach.

Yep, only when you try to teach someone do you really understand something.

There is one glaring fault that a self-taught teacher may have; people learn in different ways. What works for one may not work for all. So the self-taught teacher may not realise that their own personal methods are not necessarily valid for everyone.

The best way to learn something is to teach it!