High Weirdness is author Erik Davis’ most heroic effort yet: a more than 400-page immersion into the lives of Terence McKenna, Philip K. Dick, and Robert Anton Wilson, figureheads of American weirdness. With these three serving as a psychic trinity to orbit, Davis is free to address the shifts in consciousness that occurred on the American West Coast in the 1970s: “I’m interested in the drift of the counterculture.”