Peirce called it 'the irritation of doubt' — the discomfort that actually drives genuine inquiry. His point, developed in his 1877 essay 'The Fixation of Belief,' was sharper than it first sounds: we don't seek truth because we love truth. We seek it because holding an uncertain belief is genuinely uncomfortable, and the fastest relief is to stop doubting, not to become right. In finance, this dynamic is quietly expensive. The moment an insight crystallizes into a position, the irritation dissolves — and so does the cognitive pressure that was keeping the insight honest. Comfort arrives before accuracy does. What Peirce adds to the investor's toolkit is a reason to distrust relief: if an insight no longer feels uncertain, that's not a sign it has been confirmed. It may simply mean you've stopped genuinely testing it. The discipline worth developing isn't more rigorous analysis at the moment of formation — it's deliberately reintroducing friction after the insight feels settled, precisely because that's when the irritation that sharpens thinking has gone quiet.

What did you stop questioning this week the moment it became a position?

Drawing from American Pragmatism — Charles Sanders Peirce (The Fixation of Belief, 1877)