Aliens covertly replace individual humans with identical copies that lack emotion and individuality, testing whether anyone would notice if the people around them were replaced by conformist duplicates.
THE canonical paranoia allegory. Models conformity pressure, McCarthyism, corporate culture homogenization, and the fear that the people around you have been replaced by something that looks the same but lacks inner life.
Domains: First Contact and Alien CivilizationsSocial Engineering and PsychologySurveillance and Privacy
Scenario Types: Warning / Self-preventing prophecyCautionary tale
Outcomes: DystopianCautionary