A musician practicing the wrong fingering ten thousand times doesn't become a master — they become an expert at the wrong thing. Charles Sanders Peirce, the 19th-century American philosopher who founded pragmatism, argued that belief is not a mental state you hold but a habit of action you enact. What you repeatedly do under conditions of low stakes literally *is* your decision architecture — not a rehearsal for it. This has a sharp implication for anyone building habits around discipline or pressure performance: the quality of your small, unobserved choices isn't incidental to who you are under stress. It's the substrate. Peirce called this 'fixation of belief' — the process by which repeated action calcifies into the automatic response that arrives before deliberation can. The leader who makes clean decisions in a crisis is mostly running old grooves cut during quieter moments when no one was watching. Tuesday is one of those moments.

What is the gap between how carefully you make decisions when someone is watching versus when no one is?

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