Originally Posted by zanderbaxa
That is funny! May be that is why there are not so many geniuses! In all the people who lived, there were not many, It is possible the environment criteria necessary for intelligence to be evoked has not occurred.
On the contrary, the average 2-year child is "smarter" than the "smartest" of any other animal. So indeed humans have evolved intelligence to a tremendous degree. Of course there's a lot of variability in the population, and the very definition of "genius" is based on that variability - something like the top 1/100 of 1% as measured by IQ. It doesn't matter how smart the average person is - by definition there can never be more than that number of geniuses.