About two-thirds of Americans report having had moments of déjà vu, that eerie sense of familiarity in an objectively new situation. Researchers who study the phenomenon have found trends among déjà vu-ers: They are often educated, frequent travelers, and avid readers or movie-watchers. (They have noggins full of images.) They are more likely to be young, which is surprising, since older people are typically more prone to cognitive glitches. Maybe older folk are too used to them to notice.
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