Deja-vu现象，原文为法语dé jà vu，中文翻译为“即视感”，简单而言就是“似曾相识”，未曾经历过的事情或场景仿佛在某时某地经历过的似曾相识之感。而且有一首英文歌，就叫Deja-vu。“When you see familiar faces, But you don’t know where they’re from, Could you be wrong?/ When you’ve be particular places, That you know you’ve never been before, Can you be sure?/ ‘Cause you know that this happened before, And you know that this moment in time is for real, And you know when you feel deja-vu./ Feel like I’m been here before…/ Ever had a conversation, That you realize you’ve had before, Isn’t it strange?/ Have you talked to someone? And you feel you know what’s coming next. It feels pre-arranged./ ‘Cause you know that you’ve heard it before, And you feel that this moment in time is for surreal. ‘Cause you know when you feel deja-vu. ”这歌词已经很形象的解答了Deja-vu现象为何。可是现代科