I feel like the first example plus https://en.m.wikipedia.org/wiki/Bell%27s_spaceship_paradox https://en.m.wikipedia.org/wiki/Bell%27s_spaceship_paradox reveals

I feel like the first example plus https://en.m.wikipedia.org/wiki/Bell%27s_spaceship_paradox https://en.m.wikipedia.org/wiki/Bell%27s_spaceship_paradox reveals a need for something beyond Newtonian gravity.