Part 11/15:

Yet, some traits associated with success—like industriousness or self-control—do not correlate strongly with IQ. Surprisingly, intelligent people don’t necessarily exhibit more industriousness; behaviors such as procrastination seem independent of cognitive ability. This remains a profound mystery and an area ripe for further inquiry. Understanding what drives sustained effort, motivation, and long-term planning remains elusive despite the power of IQ as a predictor.

The Role of Diversity and Human Variation

Biological Divergences and Society