I don't recall where I picked this up.  I'm sure it was a parental tape as Dad was a Psychologist.

 There are 4 levels of learning:

1. Unconscious Incompetence- You don't know that you don't know something

2. Conscious Incompetence- You know that you don't know something.

3. Conscious Competence- You know something and know that you know it.

4.Unconscious Competence- You know something so well that it now is second nature.

 Most of us here ( well some of us) have passed step 1 and are now off and running with step 2.  Some have reached step 3.  And a select few (see low member ranking) have reached step 4.

The problem for most step 4 levels is that they can't chunk down to level 1 and 2 because it now is resident in their unconscious.  I for one, am grateful that this is not the case with WA.