From Newsweek:

Why We Believe
Belief in the paranormal reflects normal brain activity carried to an extreme.

It wasn’t immediately obvious to Walter Semkiw that he was the reincarnation of John Adams. Adams was a lawyer and rabble-rouser who helped overthrow a government; Semkiw is a doctor who has never so much as challenged a parking ticket. The second president was balding and wore a powdered wig; Semkiw has a full head of hair. But in 1984, a psychic told the then medical resident and psychiatrist-in-training that he is the reincarnation of a major figure of the Revolution, possibly Adams. Once Semkiw got over his skepticism—as a student of the human mind, he was of course familiar with “how people get misled and believe something that might not be true,” he recalls—he wasn’t going to let superficial dissimilarities dissuade him so easily. As he researched Adams’s life, Semkiw began finding many tantalizing details. For instance, Adams described his handwriting as “tight-fisted and concise”—”just like mine,” Semkiw realized. He also saw an echo of himself in Adams’s dedication to the cause of independence from England. “I can be very passionate,” Semkiw says. The details accumulated and, after much deliberation, Semkiw went with his scientific side, dismissing the reincarnation idea.

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