alyssavance comments on The Graviton as Aether - Less Wrong
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I do agree with you that GR cannot be a fully correct description of reality on a quantum level (because of this and other issues, especially many worlds). I was saying that we should take the structure of GR into account when building a unified theory, rather than just starting off with the assumption that gravity works exactly like all the other forces.
This is what the proponents of the loop approach usually stress - demand that the theory be background independent, or general covariant (I am not sure whether there is some important difference between the use of these terms).