Submitted by crazunggoy47 t3_11fkfeq in askscience
zutnoq t1_janifi1 wrote
Reply to comment by ableman in Why do cosmologists say that gravity should "slow down" the expansion of the universe? by crazunggoy47
Indeed, the inertial-ness of a reference frame is only a local property (local here meaning infinitesimal displacements).
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