A Touch Closes the Circuit
The metal rim and the metal tool act like two sides of a simple electrical switch. While they stay apart, the circuit is open and the warning light stays off. Touch the rim, and the tool bridges the gap: electricity can flow, so the light comes on immediately.
That makes the edge more than a physical boundary. It is also a sensor, turning a tiny slip into a clear signal without needing to judge how hard the player touched it.
Why the Penalty Feels Instant
The design links the player’s hand movement directly to the consequence. There is no scorekeeper deciding whether a brush counts; the electrical contact makes the call. The red nose gives that moment a visible result, so even a brief tremor becomes part of the game.
Because the penalty is triggered by contact rather than by a large mistake, careful movement matters throughout the task. The rim is both the obstacle to avoid and the mechanism that announces when you have crossed the line.
