As to the last point in the article about why we don't have so many more geniuses, I'd like to add the possibility that it's similar to longevity: although we a

As to the last point in the article about why we don't have so many more geniuses, I'd like to add the possibility that it's similar to longevity: although we are seeing the average lifespan increase dramatically, the upper end is not really moving. It seems that more people are just living their full lifespan. Perhaps it's the same with intelligence, where more of us are forced to develop to our potential now but we haven't necessarily raised the bar for our species. I think if you look at other statistics such as college attendance rates they would support this scenario.