Heh, time a dimension... Yeah, that's why I refer to hypercubes and such as the "fourth geographical dimension". That site I linked to makes a good point, though. That thing about only being able to really experience a certain amount of dimensions if you, yourself reside in one dimension under. In other words, the only way to depict 3D without it being 3D is with a 2D medium. So to depict 4D you have to do it in 3D. That's where the stereograph thing comes in... and that makes it even worse...
Nice mock-up. It looks so terribly, horribly old-school. That's a good thing.