Have you ever been sure something happened—only to find out it didn’t? Welcome to the Mandela Effect, a mind-bending phenomenon where large groups of people misremember the same event. From famous movie lines to historical facts, we explore the psychology, neuroscience, and internet culture behind these collective false memories. Is it just a quirk of human memory, or evidence of alternate realities? Join us as we dive into one of the strangest puzzles of modern consciousness.