The Senses Translate

The disturbance crosses a room while each parcel of air mostly rocks in place

Three overlapping cone signals become useful only when the visual system compares them

Emitters add spectral power; pigments remove parts of the light already present

Aperture and shutter can preserve exposure while changing what the image means

A flat picture becomes spatial only after it commits to a viewpoint

Hands, faces, locations, and movement can organize language without copying speech