What if there was only two dimensions. Space and Time. And those two dimesions each have three subdimesions. Space has length, width and height. Time has past, present and future. Each dimesion can be sepratly graphed to find a particles exact position. As I recall the uncertainty principle is because you cannot determine a particles exact position and velocity at the same time. Isn't velocity really unrealivant. The velocity of an object can fluxuate, so you would be measuring an avarage, not a set. But the position from one time to another is. If you could expand or contract the distance in the time and space dimesions together then you would have a change in velocity. So time and space are real, and it's velocity that's imaginary. hey, why not.