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I'm likely wrong in some subtle (or not subtle) way, but here's how I think of time dilation: We, and everything on Earth, are traveling through 4D spacetime at the speed of light. Most of that is in the time domain, because the Earth, Solar System, Galaxy, etc., are all moving a very small fraction of the speed of light, so the X,Y,Z components are small. (Kind of like being on a Bloch sphere in quantum computing.) Any time you move in X,Y,Z, to keep the total magnitude of of spacetime the same, the time component is necessarily smaller. You have to push other particles in the opposite X,Y,Z directions for this to happen, a paradox occurs to me Does the total momentum through time get conserved? If so, how does that work? |