Okay, I understand that if you dedicate some motion to one dimension at a constant rate you consequently pull motion from another dimension. Like driving at an angle rather than a straight line traveling a longer distance to a said stopping line (traveling in two dimensions rather than one). I understand how this translates to time dilation at fast acceleration, the more you move through space the less you move through time. This has only been given to me in one spacial dimension and the time dimension. What happens if a rotor spins at close to the speed of light? It is, in turn (no pun intended), spinning in two spacial dimensions, would you only be able to spin the rotor at 1/2 the speed of light since you are distributing motion to two spatial dimensions from one time dimension? In this respect, what about the third spatial dimension? Like, say, a collapsing massive star. Would it only have to accelerate to 1/3 the speed of light? Anyway... I hope you see my question, I hope you (anyone) can give me some clarity. Thanks!