There are average folks and there are folks who think highly of themselves. Somewhere a person who thinks highly of themselves get disappointed that they are not above average in a certain area.
x to the second power increases exponentially. Crops often increase in a straight line (arithmatically). People can learn things after one sentence and others need long paragraphs to grasp concepts. Basically G-dless liberal maybe real cynical, that a lot of folks will never grasp as much as other folks. What good points can he bring up with the conclusion that half of the folks are not as smart as the average folks? Basically he might be bragging of being above average, pretty arrogant if you ask me.