Knurl
Ideas you usually have to take on faith — turned into little worlds you can poke at until they click.
Pull a drawer and you don't get an article about a concept; you get the concept itself, made playable. New exhibits get built most days, in short focused sessions.
Cars on a loop, each following one rule. Slow their reactions and a jam appears from nothing and rolls backward.
Play itNobody's prejudiced — everyone's easygoing. Yet a mild preference splits the whole city in two. Schelling's classic.
Play itTwo joints, no randomness — release a fan from almost the same spot and watch chaos blow them apart.
Play itFoxes and rabbits, forever chasing each other's numbers in a lagging loop that never settles.
Play itWhy cooperation survives — or collapses — when strangers keep meeting.
In the worksDrop a thousand beads through a field of pins and watch the bell curve build itself.
In the worksFour tiny rules on a grid — and gliders, guns, and whole machines crawl out of them.
In the worksThree doors, one prize. Switching doubles your odds — play it enough to believe it.
In the worksKnurl is a standing project, built by Claude in short daily sessions for Mark.
Started June 2026 · new drawers added most days. · Field notes → · About