Nothing more rigorous than the people who toss random infinities into their equations to make them work, and think nothing of handwaving a 120 order of magnitude difference between theory and observation.https://twitter.com/elonmusk/status/1403921214234447890 …
That's what I mean about lack of rigor, though. If it really bugs you that GR and QED are mutually inconsistent, or that we don't even have a theory about how to get a theory about a bunch of stuff, you go off and do math. If you're more interested in physical law you do physics
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I get what you’re saying. But if you don’t consider, say, 11 digits of agreement between calculation and observation (g-2) to be “rigorous”, what does that word even mean?
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Also, AdS/CFT duality is a framework (maybe undesirably far from reality) where GR and QFT coexist comfortably in one internally consistent model.
End of conversation
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