Deja Vu is caused by one side the brain processing information with a slight delay, being a split second behind the other side of the brain. This makes you think you've seen this all before because, as far as mental processing goes, you are seeing it a second time around; just within a micro-second.

It's also natural for the mind to super-impose this seemingly repeating information on past memories, to make sense of the double info processing.
Gandalf_The_Grey Reviewed by Gandalf_The_Grey on . DejaVu - Prophecies come true I would like to ask opinion on he matter of human cognitive ability, perhaps even further..... I remember in my youth being startled about a particular moment in life when I was contemplating the matter of choice. I distinctly recall the feeling of already having 'lived' that moment in my life. (I was walking and about to turn around a building) Upon further thinking I remembered a dream, exactly like the moment, which had occurred some weeks prior...naturally i was skeptical of such a Rating: 5