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By Einstein's definition, time is what clocks measure – but how can we define “clock” without referring to time? This tag is for such philosophical questions about the many unresolved issues concerning time. Though this includes questions about the interpretation of physical theories and concepts, if your question is about what current physics can quantitatively predict or explain, it is probably not about philosophy and therefore off-topic.

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This question may have been asked before; actually, it's definitely been asked before, since it's on the topic of whether time is real or a man-made construct, but I don't believe it has yet been … asked in this specific way. We have 2 events, A and B. As long as we experience B after A, for us there was a passage of "time" in between A and B; that is, we can clearly say something must've …
asked Sep 21 '18 by Joshua Ronis