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May 7, 2017 at 18:27 comment added K7PEH Consider that each point in 4-D spacetime has its own coordinate system. And, to make use of this coordinate system in terms of multiple points separated by some distance you need to compute how coordinates at one point change to become useful at another point. This is a coordinate transformation and the key idea of working with general relativity.
Apr 30, 2017 at 3:33 comment added girlphysicsmajor So do the 4 space-time dimensions actually move when they curve?
Apr 30, 2017 at 3:02 history answered mmesser314 CC BY-SA 3.0