Deja-vu is easy enough to explain when you've just realized you've just come back from the future. It's really a part of the process of remote viewing, or metempsychosis, a bit of a time leap in the visual optical process that's too fast to pick up in the conscious memory when it occur's, fix's in the the sub-conscious optical memory, and is re-called to the conscious memory, a circiut of time between two hemisphere's of the brain is suddenly connected for a split second. It's when you get three hour's missing in a time gap while doing 30 mile's an hour on a 6 minute journey by car that's harder to explain!
