On 7 February 2014 11:30, Edgar L. Owen <[email protected]> wrote: > > But even if they do that, one twin still is REALLY younger than the other. > That real actual time disparity can NOT be reset. There is a real absolute > time and age difference that relativity can CALCULATE but relativity CANNOT > explain why that time and age difference exists in the same present moment > the twins share. > > So far it's been explained by me, Brent and Jesse, not to mention Albert Einstein and countless popularisers of relativity theory (apologes to anyone else on this list who has also explained it that I've forgotten). To re-re-rehash it briefly, the difference in ages is explained by the different paths through space-time taken by the twins before they meet again at a particular point in space-time.
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