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What Is the Bystander Effect? The Bystander Effect (also known as witness apathy) is a social-psychological phenomenon in which the presence of others makes an individual less likely to step in and help someone in need. In other words, the more people who...

One of the strangest aspects of the Mandela Effect is this: Thousands — even millions — of people can share the exact same false memory, as if they had all experienced a version of reality that never actually existed. In psychology, this phenomenon is known as...