Submitted by -cool--beans- t3_10q3k9c in explainlikeimfive
Bensemus t1_j6nsni2 wrote
Reply to comment by LongAssNaps in ELI5 why time slows down as you go faster by -cool--beans-
The largest reference frame is the CMB. There is no absolute reference frame which is a fundamental part of general and special relativity.
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