I'm currently doing some research on the various aether theories and I stumbled upon Einstein aether theory. It appears to be much different from Luminiferous aether and be more closely related to general relativity.

What are the key differences between Einsten's aether theory and general relativity?

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    $\begingroup$ It's not Einstein's aether theory, it's Einstein aether theory. Namely, it's a modification of general relativity that introduces a new object that, some might argue, depending on how you look at it, kind of has, one could say, a tiny little bit in common, perhaps, with the pre-relativity ether. Einstein himself had nothing to do with it. $\endgroup$
    – knzhou
    Jul 9 '19 at 0:30
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    $\begingroup$ Einstein aether theory is one of perhaps a hundred different theories that modify general relativity by adding extra bells and whistles. At present there is no direct evidence for any of them, though. $\endgroup$
    – knzhou
    Jul 9 '19 at 0:30
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    $\begingroup$ What do you want to know that isn't discussed in the Wikipedia article that you linked to? $\endgroup$
    – user4552
    Jul 9 '19 at 0:44
  • $\begingroup$ @BenCrowell Mostly the key differences between them, presented in a way that is somewhat manageable to understand without specialised knowledge of the field. $\endgroup$
    – ThePiachu
    Jul 9 '19 at 5:32

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