I composed a thought experiment that I'm not quite positive on. Say we have a merry go round or some spinning thing and we speed it up to near the speed of light. On this merry go round is a very big mass which we simply push off at this point. The decrease in weight will add to the angular acceleration. My guess is that simply no matter how close you are the the speed of light the only weight that will make it spin at the speed of light is an infinate mass being pushed off. Is this right or am I missing something.