There is a reason that I kept bringing up light because light follow both rules of QM and GR. As completely separate objects, light dilates space time, and extreme mass also dilates time. Light is not going to slow down as if it is in some dilation of time too an observer, it is already there. So color me less than impressed that light would act like it ignores physics, it certainly doesn't, light shows the foundation of GR.It is often thrown about that Einstein has never been experimentally shown wrong. The experiment with quasar time dilation calls this idea into question.