Conscious and competence

There are four stages of competence.

Stage 1. Unconsciously incompetent -- you really don't know what you don't know.

Stage 2. Consciously incompetent -- you really do know how much you don't know.

Stage 3. Consciously competent -- you know stuff, but you have to really think about it to act on it correctly.

Stage 4. Unconsciously competent -- you know stuff and you no longer have to think about it. You just do it.