- #36
Nugatory
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jartsa said:I think it's because lower clock really is slower than upper clock.
Try writing down a rigorous definition of "really is slower", one that I could use to construct an experiment that will allow all observers to agree about which one is "really slower". It can be done, but it's harder than it sounds, and when you succeed you'll have a better sense of why the question posed in #13 of this thread isn't all that well-formed.