Intellegence is a hard thing to measure, after all I can know a lot about geography and History and know very little about chemistry and physics, or vica versa, people are just chooseing to learn different things, some people porbley know a lot about how to pirate and are masters of their cellphone and know where to find the best deals on products while another could be considered highly cultured, speak several languages and have no clue how to work a computer, or how to text on a cellphone. In short people learn different things based on whate they view as important and thus it is hard to compare or truely measure it.