For decades, we've treated IQ and EQ as the twin pillars of success. IQ measures how well you think. EQ measures how well you feel. Together, they shaped how we educated children, selected leaders, and decided who had "potential." But after years of working closely with founders, executives, and high performers, I've become convinced that something critical is missing from this picture. I argue that there's a third form of intelligence, one that quietly determines who thrives when life stops following the script.