This is something important that people do not seem to grasp. Intelligence is a really high dimensional thing. Even the ones that are highly intelligent in some dimensions are dumb as rock in vast majority of other dimensions. So we all are basically morons with some occasional flashes of intelligence in some individuals.
Really dumb people don't know that they are really dumb. Dumb people know that they are dumb. Below average people think they are average. Average people think they are smart. Smart people know they are smart but not highly intelligent. Highly intelligent people think they are geniuses (including in all possible fields). Geniuses, real honest-to-goodness geniuses, know that they are smart in many ways but mostly dumb.
I cannot prove it, but this is how I think it is. For the record, I think I am smart; however, because of the Iron Rule of Intelligence above, it is equally possible that I am only average.
