[jasonlotito]

> Nothing beats solving problems yourself.

Assuming you understand why you solved a problem, and you solved it well. This is where teaching helps. You have to prove that you understand it, and because you are putting it out there, it will get judged and corrected. Often programmers can solve problems without understanding why their solution works, or whether it actually works and they are just missing something critical.

In fact, I'd go so far as to say that teaching well requires doing, but doing doesn't require teaching well, so one could make the argument that Teaching Well > Doing.