Assume you have two objects, with nothing else, moving directly away from one another, each at 51% of the speed of light. But, from the frame of reference of one object, the other is going 102% of c, an impossibility. How does this work? And: Those same two objects, which has more energy, and, thus greater time dilation? If you use ether of them as a reference point, the other seems to have more energy, thus greater time dilation. How does this work?