Got this from extending the "faster than light" portion of the wiki page. Wiki notes that if a laser is swept quickly across a distant object, the point will move faster, but nothing else necessarily violates any rules so this experiment passes. Now what if you have an infinitely long rod of negligible weight opposing your holding of and swinging of the said rod, and you decide to spin it round and round at a 90 degree angle to your body.What are the SR effects at each end of the rod, particularly, the end that would otherwise move faster than c if it weren't for that speed limit compared to the end you are holding. Would it just be a connected twins paradox? And what of the apparent "ages" of the two ends of the rod. I know a rod doesn't "age", but if you were to compare the aging of the end you hold through time and a point very very far away, would it really be different or is there some linkage of information about their respective ages that prevents this (this last question may just be my over-thinking the situation)?