And no one dared And in the naked light I saw Ten thousand people, maybe more People talking without speaking People hearing without listening People writing songs that voices never shared And no one dared Disturb the sound of silence Paul Simon & Art Garfunkel, The Sound Of Silence communicationlistening
Truchet Tiles Truchet tiles are square tiles decorated with patterns that are not rotationally symmetric. When placed in a square tiling of the plane, they can form varied patterns, and the orientation of each tile can be used to visualize information associated with the tile's position within the tiling. Wikipedia en.wikipedia.org The Tiling Patterns of Sebastien Truchet and the Topology of Structural HierarchyWang tiles graphicsart