Hi Robin, I've followed up on our question about photons having gravitational influence by reading up on some threads on PhysicsForums and posing a question of my own. The conclusion that classical beams of light bend spacetime is a straightforward for mainstream physics; namely, they do. (Do individual photons bend light? Probably, but to be determined.) How much does light bend gravity? In an answer to my question about the annihilation photons and the black hole, assuming there is no firewall, one respected member of the forum appears to agree with me that they have the same affect on gravity as the masses of the electron and positron prior to entering the black hole.
We are left to wonder whether Mills in his boundless and admirable ambition has set out to revise not only quantum mechanics but general relativity as well. Eric My question about the black hole: https://www.physicsforums.com/threads/electron-positron-annihilation-and-gravitation.938873/ Posts about photons, light and gravity: https://www.physicsforums.com/threads/photon-gravity.349196/ https://www.physicsforums.com/threads/light-and-mass.122636/ https://www.physicsforums.com/threads/the-gravity-of-photons.381246/ https://www.physicsforums.com/threads/photons-and-gravity.494216/ https://www.physicsforums.com/threads/do-gravitons-interact-with-photons.473684/