The medieval logician Jean Buridan — famous for a donkey that starved between two equal haystacks — spent decades arguing that intelligence is not primarily a capacity for having good ideas, but a capacity for detecting when you are reasoning badly. His insight, buried in 14th-century scholastic Latin, has a sharp modern echo in the work of psychologist David Dunning, who found that the same cognitive skills required to perform a task well are the ones required to recognize you're performing it poorly. This creates a strange asymmetry: genuine intelligence begins not in the flash of insight, but in a felt friction — a moment of slight unease with your own conclusion. Most of us are trained to smooth over that friction quickly, to appear confident, to move forward. The sharper practice is the reverse: when a conclusion arrives too easily, treat that ease itself as a signal worth examining. Today, before you finalize any significant judgment — a plan, an evaluation, a read on a person — pause at the moment it feels settled. That feeling of settledness is a data point, not a green light.

Think of a conclusion you've reached this week that felt obvious. What would it take for you to be wrong about it — and have you actually looked for that evidence?

Drawing from Scholastic philosophy synthesized with metacognitive psychology — Jean Buridan (Summulae de Dialectica, c. 1335 CE), synthesized with David Dunning (Dunning-Kruger studies, 1999)