Philip K. Dick is most frequently viewed as the forefather of the modern paranoid fiction. His works were born out of paranoia and hallucination; he had sudden visions of places he'd never been to and events he'd never witnessed, possibly from temporal lobe epilepsy or an overly active imagination. These visions were so vivid that Dick put them down on paper, never failing to classify them as only "speculative thought," and thus outside the boundary of conventional thought.[3]