When faced with four infants who look similar, viewers may unconsciously rely on visual details such as colors, facial expressions, perceived delicacy, or other characteristics they have learned to associate with gender. After making a selection, the accompanying personality reading often provides positive descriptions such as being kind, intuitive, thoughtful, or emotionally balanced. Because these traits are broad and flattering, many people can recognize themselves in them, creating the impression that the reading was specifically accurate.
This phenomenon is closely connected to the Barnum effect, in which people tend to accept general personality statements as personally meaningful. Confirmation bias can strengthen that impression because once someone chooses an answer, they may pay greater attention to information that appears to support their decision. Social media makes the process even more powerful by encouraging quick reactions, comparisons, and discussions among friends and strangers.
