14.     When asked if he made shadows of his readymades on a wall [and photographed and included them in his Tu'm (1918) painting] "for any particular reason?" Duchamp answered that he wanted to show his readymades in a different perspective of "light projection." This Poincaré technique is precisely the way to see a new, higher dimensional perspective with shadows from light projections (see Hulton, 1993-June 21, 1967)!