Curiously, several of the preserved heads shown are those of people who were already dead well before the advent of this technology; one of the most prominent examples of this anomaly is Earth president Richard Nixon, who died in 1994 and appears in numerous episodes.
Curiosamente, varios dos políticos en conservas xa estaban mortos antes da suposta chegada desta tecnoloxía, un dos exemplos máis destacados desta anomalía é Richard Nixon, que morreu en 1994.