Share We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › Do you know that strange sensation of walking into a room and feeling like you’ve been there before, even though you know you haven’t? Or when you hear someone say something for the first time, but there’s a certain familiarity to it that gives you pause? That’s déjà vu–a phenomenon that’s not well understood, but scientists have some ideas. Déjà vu is the eerie feeling that you have had the…
