The four levels of competence: [ Unconscious Incompetence ] --> "You don't know what you don't know" ↓ [ Conscious Incompetence ] --> "Y

The four levels of competence: [ Unconscious Incompetence ] --> "You don't know what you don't know" ↓ [ Conscious Incompetence ] --> "You know what you don't know" ↓ [ Conscious Competence ] --> "You know, but you have to think about it" ↓ [ Unconscious Competence ] --> "You know it so well, it's second nature"