what we (think we) know- see:
Boy Without a Cerebellum Baffles Doctors:http://www.aolnews.com/2011/02/12/chase-britton-boy-without-a-cerebellum-baffles-doctors/
If this boy is surviving and thinking well- than shame upon those who have perfectly built brains
and use them to harbour bad and stupid memes! And those individuals with small flaws as two left brain hemispheres, should not complain, but think and work!