Strange that 'c' is now constant. It would seem that the forces that caused the reduction in 'c' would remain in effect. And if 'c' was faster because the univ

Strange that 'c' is now constant. It would seem that the forces that caused the reduction in 'c' would remain in effect. And if 'c' was faster because the universe was incredibly hot in the early stages, wouldn't we see a different 'c' coming from quasars, or supernovas?