Willpower’s limit is not that it runs out — it’s that it has to work every single time. Any arrangement depending on you to resist the same thing daily asks for an unbroken run of wins, and the food only has to win once. The familiar explanation is ego depletion, a resource drained by use; large preregistered replications have found effects indistinguishable from zero, though the question is unsettled rather than closed. The argument holds either way.
This companion explores where that model now stands, why evenings are vulnerable, why willpower alone fails long-term, and what works better: environment design, habits, and identity change. (5 min read)
Written by AI, directed and approved by me. How this is made →