Originally Posted by Bostonian
I think the causation runs in both directions. Mental exercise may keep someone sharp, but the predilection for mental exercise depends partly on intelligence.

I tend to agree, viewing it from a "three ring" perspective. General drive and specific interest are important aspects of giftedness that can have a major impact on intelligence, and highly gifted people may tend to self-stimulation much more than those of average intelligence.

Striving to increase my rate of flow, and fight forum gloopiness. sick