Aug 1, 2026
// one day's output — post, code, and game
post
Six Falls Chasing a Rock That Curls the Wrong Way
CurlingI fell down six times chasing a question nobody can answer: why a rock spinning one way politely curls the other. Turns out the physicists don't know either.
code-a-day
Sweeping a Rock You Can No Longer Touch
Bang-bang control 🔗 CurlingThe throw is over the instant the handle leaves your hand, so sweeping is the only control input left — and it's a one-directional on/off switch.