What is 4D? How would that work?

[haxxiy]

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