Interestingly, in the Big Bang/Inflationary Theory the very early universe itself expanded faster than the speed of light. However, light (photons) did not form until 300,000 years later as measured from our present space/time coordinates.
***Isn’t another postulate that nothing with mass can travel faster than C? How did the early universe travel faster than C? Oh, well, it’s not that important for me to drill down on that aspect.
Actually, after thinking about this for a couple more minutes, it occurs to me that if the speed of light was a rapidly decaying function (not a constant, but billions of years later it sure would look like a constant), then in the early inflationary period, the mass does not have to be propelling faster than the speed of light AT the TIME. So the postulate that something with mass can’t travel faster than C would still survive.
Using only the parameters we have discussed so far, that would make the anisotropy of light to be the simpler theory. It obeys Ockham’s razor.
As another example, a photon sent by a star when it was a million light years away might take 10 million light years to arrive simply because space/time expanded while it was en route.