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A comment on Why can’t I go faster than the speed of light?. Parent comment

Re:Why can’t I go faster than the speed of light? by caf on Monday September 13, 2021 @02:02AM (#28508264)
This TEDEd video works through the thought experiment, with messages sent from each twin to the other at 1-year interval (in the sender's frame of reference).

https://www.youtube.com/watch?v=h8GqaAp3cGs

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