1. Self-recognition of ignorance and one’s lack of competence resulting from a complete absence of knowledge - before “Of course I know everything” stage.
  2. A false level of confidence and incorrect assessment of one’s own level of knowledge and expertise, resulting from knowing a little - a “Of course I know everything” stage.
  3. One recognizes their level of ignorance even if they have not reached the level of expertise - starts at the “I may never understand this”.