>> He's done more in five years than you've done in 20. You can't train that. People just are. > I do believe that all healthy human beings do have the same po

>> He's done more in five years than you've done in 20. You can't train that. People just are. > I do believe that all healthy human beings do have the same potential for the amount of knowledge they can consume, at least at birth. If there's anything I've learned from my experience in neuropsychiatry research, it's that there's a whole lot of natural and environmental variation in human biology and psychology. I've seen kids who would otherwise appear healthy and sociable score astonishingly low on cognitive tests (e.g., on executive function, pattern recognition, block design, etc.). I've also seen kids who would otherwise appear completely healthy and normal score amazingly high, by way of extensive schooling and parental attention (and also very often, wealth). So I'd disagree with both comments above that (1) intellectual capacity can't be trained and (2) healthy humans have the same intellectual potential.