4D would probably a slightly update from 3D. There wouldn't much of a difference. i think thats why the graphics went straight to high def.

here you go, 4D, that's what you see when you play warhawk that's why the game is so awsome

 wtf? thats just a cube going inside out and expanding and contrasting continuously any game could do this.

that's the representation of a cube in 4D and it's not expending lol! it's turning

Human being can't really perceive 4D but can imagine a rude sketch of a 4D object...

About that cube... yeah it could be 4D... think about a 2D world where a round image keep increasing and decreasing all the time. In fact, is a sphere entering and lefting the 2D plane... so a sketch of any 4D object would look bizarre in 3D.

Of course 4D gaming is impossible :P but that one is kinda new for me. I remember when my cousin bought a PS3 back in the launch my aunt called it 'the 3D'... lol

just watch the video i posted in this thread

lol, where?

Edit : I saw it. Pretty much wraps up everything 

Yeah, I'm pretty sure it's eleven, I've never heard of a theory with thirteen dimensions.

ya, its 11, was thinking of a different theory with 13 something or other (forget right now)