The order of competence is as follows:
1) Ignorance is bliss: The person knows they have no idea about the subject and acts accordingly.
2) 101 Syndrome: Someone learns a little bit about it from one source or another and feels like they know everything about it.
3) Further education: You learn half the things you were taught were wrong and the other half oversimplified.
4) True knowledge exists in knowing that you know nothing: When you learn enough about anything, you realize no one has a clue how anything actually works.
<Insert that scene from Good Will Hunting here>
<Insert that person that won't shut up about the plot structure and wide angle shots in Good Will Hunting here>