Driving cross-country some years ago, I pulled off Interstate 76, among the arroyos and tumbleweed at Fort Morgan, Colorado. Philip K. Dick lay buried somewhere in the cemetery there. But where? At the public library, a sweet old lady volunteer …

  Sun Ra, the visionary leader of the jazz ensemble he called his “Arkestra,” once submitted a manuscript of poems to a commercial publisher, receiving it back with a curt editorial comment: they seemed written in an alien language. He took it…