And so, with a five-thousand-year-old oracle guaranteeing its “inner truth,” he plunged methodically into the labyrinthine ways of his idios kosmos. His personal “idiocy” would henceforth be organized around the conviction that reality could not be apprehended directly, because it gets filtered through each individual’s subjectivity. What seems real is a deception. What rational beings agree on as constituting reality is merely an illusion, a simulacrum created either by the few in an effort to mislead the many or else by some external power intent on misleading everyone. Reality is not reality.
Emmanuel Carrère, I Am Alive And You Are Dead: A Journey Inside The Mind Of Philip K Dick, Timothy Bent trans. (1993; London, 2004), 76.