The Differences Between Black and White on the IQ

Psychologist Richard Nisbet says group differences between black and white are not genetic. In a bad environment, it doesn't matter how good your genes are, intelligence cannot be nurtured. The analogy often uses with plant height is the height of plants grown in rich or nourished environments. But if you compare plant heights between plants grown in impoverished environments that have little to no water or sunshine and crappy dirt, the differences are primarily environmental.