Don't listen to this idiot, what he spiels is very dangerous and is the same reason why Hitler existed ! Intelligence is just a skill, any question on the IQ test can be easily seen as skill that can be developed. Memory, Spatial Awareness, Vocabulary, Logic, all can all be developed. Even the one he highly determined to be very important, like memory. Intelligence is just having more Neurons and Gila connections in the brain. The more blood flow to the brain, the more these connections are created and the stronger they become, thus the more intelligent you can become. There is no limit intelligence when you put you mind to it.,(reply>), Exactly, Hitler travelled in time to start both: the 30 Years War and WWI. The overpopulation of Germany relative to France, Poland and Bohemia didn't have anything to do with it