Sometimes, you get a piece of advice from someone and it works. Your instructor might’ve told you the answer to your question was X. And you try it, and it works for a bit, and then it stops. But you keep going to X because that’s what you were told and that used to work. You continue down the wrong path and continue to fail.

Only months or years later, when you ask your instructor about that advice, he tells you his thinking’s evolved and he no longer prescribes X. Now it’s about Y.

Now, when you go to Y, remember you should probably try to figure out what Z is.