Why does Crichton see a funny Scorpius (Harvey), but no one else can?
During the episode titled, Won’t Get Fooled Again, it is learned Scorpius implanted a neural chip inside Crichton’s brain while the human was a PK prisoner during late season one. The chip contained a clone of Scorpius’ personality. The neural clone was charged with the task of keeping Crichton safe, preventing Crichton from ever harming Scorpius, and locating the wormhole knowledge locked in Crichton’s brain. This was all to occur in Crichton’s subconscious; the human was never to have known the clone was in his head until it was too late. However, early in season two, during an encounter with an alien named Traltixx, Scorpy’s plan went somewhat awry. Traltixx was a bad guy who distracted his victims by changing their personalities. Although he was defeated, the alien’s devious work on the human’s mind allowed Crichton some awareness of the Scorpy neural clone. At first, Crichton thought he was hallucinating; seeing Scorpy in beach shirts, drinking margaritas and eating pizza. As the