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Does quantum gravity HAVE to differ from general relativity?

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Would it in principle be possible that a theory of quantum gravity makes predictions that do NOT deviate from general relativity for any practical measurement scale?

In other words, even though the two must differ at the Planck scale, could it be that the differences are not measurable in any practical experiment?

asked Jun 24, 2020 in Chat by Johannes [ no revision ]
recategorized Jun 25, 2020 by Dilaton

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