Level 0: I overcame obliviousness
I now realize there is something here to learn.
Level 1: I overcame intimidation
I feel I can learn this subject or skill. I know enough about it so that I am not intimidated by people who know more than me.
Level 2: I overcame incoherence
I no longer feel that I’m pretending or hand-waving. I feel reasonably competent to discuss or practice. What I say sounds like what I think I know.
Level 3: I overcame competence
Now I feel productively self-critical, rather than complacently good enough. I want to take risks, invent, teach, and push myself. I want to be with other enthusiastic students.