"Research is the process of going up alleys to see if they are blind."

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There was a beauty in the trash of the alleys which I had never noticed before; my vision seemed sharpened, rather than impaired. As I walked along it seemed to me that the flattened beer cans and papers and weeds and junk mail had been arranged by the wind into patterns; these patterns, when I scrutinized them, lay distributed so as to comprise a visual language.

— Philip K. Dick