> If you have a gravity detector that can distinguish where a photon's energy is localized, it also works as a photon detector in the QM measurement sense, and

> If you have a gravity detector that can distinguish where a photon's energy is localized, it also works as a photon detector in the QM measurement sense, and will collapse the wavefunction in the same way. But in the Michelson interferometer, the Fabry-Perot, etc., the parts of the wave functions pass close to lots of mass, get reflected by mirrors, etc. without the wave function collapsing. So, a part of a wave function should be able to pass near a gravitational wave detector and be detected without causing the wave function to collapse?