Yeah I've heard of Lucid dreams. Rather a kewl prospect though I don't remember if i've ever had one. Basically its about tricking your mind that your in a dream and its not real., so you can basically do what you like? Ever seen Better Than Life on Red Dwalf?
As for them telling the future, this can't be certain, though it can't be prooven wrong really. Only by scientists who don't like open arguments. We only use about 10% of our brains at a time.
As for DejaVu. I get this alot. The past month I've had it about 4 times.
I think I know what it is though. Yur memory will store things that you won't have links to thats happened in your life previously, like a convosation you might have had. As soon as this is menitoned again and in the same type of atmopshere or around the same convo, your mind will link with it, and it'll appear like this has happened before, though not exactly the same.
What you think?