Didn't some guy prove mathematically that you can't travel faster than light? I know on one of these threads that one guy said gravity can go faster than light. I honestly don't know any of this stuff. But I would guess that if gravity can go faster than light then anti-gravity would be the only way. Isn't the US government working on that? I dunno if I'm saying the obvious but if you can change gravity, then there is no reason you can't negatively accelerate to the velocity of infinite. If you were to reach such a velocity you'd be colliding with light faster then it can land on any object. What happens when you are moving away from a sun? You'd be colliding with light from a whole new angle. You'd be subject to mass amounts of heat. Now that would be cool, or rather hot. If you were to absorb that heat and turn it to energy on contact, what would happen next? Would you explode from having the energy of every sun? Will you be able to go thru matter. Would suck to run into a sun but I guess if you are going at the velocity of infinity then it wouldn't matter so much. You can destroy the entire universe by crashing into it instantaniously. Perhaps by doing so you can become a sun.