just finished reading Philip K. Dick’s Martian Time-Slip, the first novel in the 2nd volume of the new Library of America PKD collection.
this one masterfully posits a connection between dysfunctions like schizophrenia and autism and their inherent alienation from reality and further muses about how conception of time and space may be enhanced/sped-up in those cases, and may afford access to different perceptions and projections into the future or past. brilliant stuff, as usual.
and i do think it a good idea to use the massive The Exegesis of PKD as a good retrospective guide to his fiction.
all of PKD is required reading