Three points represent the first shape with a measurable surface. An added point to this creates depth or a third dimension. According to Schneider, a tetrad or three dimensional triangle, “manifests itself in nature with greatest exactness at the borderline between nonliving and living forms.”[1] If three represents life itself then perhaps four can represent what is man-made: tables, chairs, desks, walls, floors, ceilings, monitors, picture frames, books. What is square seems solid or durable. Linguistically, one squares up to another person to prepare for a fight. We talk of “square meals” meaning solid, no nonsense eating. If we hit
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