Some string theorists believe we are living on a 4d plane inside a higher dimensional univerce.

well saying that dream are 3d created by your brain theortically not that silly but this fact still does it make true that we think in 5d because 1. thought is not infinte we die unless your dump and think you have a afterlife 2. all dimension is freedom of movement and thinking is not movement 3. if we think in 5d then we would be able to cope with time i.e. you can look at something that is 2d and 1d. face it we are 3d at best i.e. dreaming or image streaming
p.s. should this be in beyound dreaming where you got other people who believe in ghost, god or telekinesis which are wet dreams at best[/b]
I beleve in God and an afterlife and I'm not dump. Or did you mean 'dumb'?