On: Quantum Mechanics of Gravitational Waves

[a9h74j]

Not the same approach as OP, but searching "double copy gravity" should yield interesting material. Evidently if you write formulas for scattering amplitudes, there is a remarkable symmetry or similarity between gravitation and electromagnetism.

I have only watched this: https://www.youtube.com/watch?v=aJkknmiCrR4

[betwixthewires → a9h74j]

I thought double copy was based on a hypothesis that gravity is a remnant of the strong force? Perhaps in thinking of a different hypothesis.

[T-A → betwixthewires]

No, it's just an unexplained but useful pattern in the math:

https://www.quantamagazine.org/how-gravity-is-a-double-copy-...