For knowledge and facts, I mostly agree. I would add that doing your own research is what you do while attempting method 3 and get stuck. But I think the articl

For knowledge and facts, I mostly agree. I would add that doing your own research is what you do while attempting method 3 and get stuck. But I think the article, and my original point, was about subject area wisdom. The larger lessons behind past failures, and the stuff that can save you unnecessary detours. There is much value in digging into a problem for a long time; you really do own it. But some things are just a waste of time to learn that way, and are better primed with the guidance of someone who can present that collective wisdom to you in a way in which you understand.