Deja Vu, like the image you see in you dreams. It's like you see a picture of the future, when the time comes, you'll be all 'Hey, I think I've seen this happen' etc. I get that often now. It seriously creeps me out.
man seriously....this thread is Déjà vu seriously but i would agree on
It happens when you see something and your brain tries to interpret it is 'just seen', but it accidentily goes to memory. Then the brain is like "Hey, I know that". and then you get the idea you saw it before