If you've seen this thread before, I apologize.
Please explain what you think déjà vu is, exactly. In other words, from a logically point of view, where does it come from? What is it? How can you see something in your mind's eye before it happens?
Obviously, I have a theory (and yes, I just thought about this after a déjà vu episode about an hour ago):
Déjà vu about intuitive connections that you make while sleeping. Then, on occasion, when you make the same connection while awake AND that foresight actually happens . . . you receive a flash that we call déjà vu.
Or I could be completely wrong, yet I believe that my theory is correct at this moment.