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Wonder what's the current status of research in the quantum field theory interpretation of gravity. Quite unlikely to ever observe gravitons (these would require Planck scale energies, at least 10 orders of magnitude larger than what is currently achievable at the LHC), so I wonder if the gravitational waves, a macroscopic observable of gravity, indirectly shed some light on those hypothetical gravitons.
General relativity explains gravitational propagation as spacetime distortions moving at light speed, while quantum gravity predicts gravitons might do the same, but this remains theoretical.
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