Art observation...

Duchamp trashed what he called "retinal art" (Art that is looked at) but I maintain that his painting "Nude descending stairs" is the by and far the best thing he ever did.  Sure, he got all revolutionary and shit, but I swear that painting is incredible.  It's the best Futurist/Cubist painting I've ever seen.  It's really sad that he took to putting toilets in galleries.

He was a victim of his own wankery.  :(