Fig 5Player pianoHover a station · → stepsknowledge in a few heads · lap 1
1Shelf
2Play
3Eyes
4Punch
5Push
6Reuse
7Teach
↺Again
into the repoexecutablethe harnesssharing
0The knowledge lives in a few heads, locked away
Orange roll: the knowledge, punched as a skill. The station using it lights up orangeNumbered plates on the floor match the steps aboveKnowledge leaves the heads and is punched into a roll that plays the piano itself: a skill that is the procedure, not a page that describes it. When a wrong note sounds, the roll is re-punched, not the note, and it goes straight back on the open shelf with no gate, while the SOC-2 cabinet keeps the product code under its controls. For the demonstration the roll plays one wrong note on every lap: on odd laps an agent mistake, on even laps a roll that went stale when the piano changed.