Some people love paradoxes and seek opportunities to claim that theyare the whole of reality. For instance, it turns out that colorperception is partially socially constructed. One writer leaps fromthat to the claim that color perceptions are arbitrary mental constructswhich have nothing to do with reality.Plenty of aspects of human perception, thought, and behavior arepartially socially constructed, but that doesn't mean they are arbitraryor that they are not constrained by reality.