If you stroll through a large art museum, you will notice that Van Gogh does not paint the same world as Rembrandt, Picasso does not see things the way Goya did, Georgia O'Keefe doesn't much resemble Rivera, Salvador Dali looks like nobody but himself, and, in general, no world-class artist became a "classic" by doing what somebody else had already done or even what everybody else in his/her own e