The Human Brain's Flexible Hub Network

What causes humans to have such high intelligence? Evolutionary psychologists typically focus on modules, but humans also have a general intelligence that allows us to adapt to a variety of physical environments. It turns out that both explanations are true. The brain has a flexible hub that allows us to much more rapidly switch among modules. Not surprisingly, both individuation and generalization are in paradoxical tension in our brains, and contribute to our high intelligence.