In the *real* world, of *real* plasma and *real* photons, in *real* labs, inelastic scattering happens. Chen even went so far as to demonstrate an empirical connection between the number of free electrons that are present in the plasma, and the amount of redshift that he observed in his experiments. There are actually several different types of inelastic scattering that have been demonstrated to have an empirical effect on photon momentum as they traverse a dusty plasma medium over millions and billions of light years.
The mainstream *should have* included some distance/redshift "adjustment" for overall scattering effects of light through plasma since that is what we observe in the lab. They didn't do that. Not only didn't they include *real* empirical physics process that must be accounted for, they want us to instead believe that photons reaching Earth are *magic*! Somehow these mystical magical photons managed to weave and dodge their way around every single temperature gradient, every single EM field gradient, every EM field around every charged particle, and every actual particle too, for *billions* of light years, without *ever* experiencing any amount of inelastic scattering through that plasma medium.
Think about that "assumption" for a moment. There's a complete detachment from empirical lab tested plasma physics and a complete detachment from physical realitythat is required to believe that every photon from every galaxy is magically "pristine" and devoid of any amount of momentum loss to the plasma medium through which it has traveled. Even in the *lab* on Earth we know that this is not the way that light propagates through a plasma medium. Photons in the lab lose momentum to the plasma medium. We can only "simulate" cosmological distances by cranking up the density of the plasma, and Chen has already showed that there is a relationship between charged particle density and redshift. There's really nothing more that anyone might do to demonstrate the *actual* likely empirical cause of photon redshift over distance than has already been done for inelastic scattering processes in plasma.
The real "evidence" that this is the mainstream's actual "error" is the fact that when *asked for a published paper* that actually demonstrates that inelastic scattering can be entirely ruled out as having any influence on cosmological redshift, they have but a single reference. It's a *single* paper that was written by Zwicky in 1929, in which Zwicky "kinda" ruled out Compton scattering, from being the *entire* cause of the redshift phenomenon. There isn't any other published paper written by the mainstream that addresses *any other* type of inelastic scattering and cosmological redshift, nor any combo options, or anything of the sort that has been written about since 1929! Think about that for a moment. How man dark energy papers have been written about that could be replaced with just *some* amount of inelastic scattering?'
The irony of ironies is that this one paper they can cite is the very same paper where Zwicky was proposing his *own* type of "tired light" solution based on GR theory, where the "pull of the galaxy that is being left behind" ultimately slows down the photon over distance.
In other words, they are forced to cite one "tired light" paper to try to eliminate the potential for any other type of "tired light'" solution to the problem. How funny is that?
Whereas Edwin Hubble as late as 1947 left open the possibility for a tired light solution to the redshift phenomenon, the mainstream has dogmatically *refused* to even consider the possibility of ordinary processes in plasma as being responsible for that phenomenon.
Instead of *fixing* their cosmological equations based on ordinary and basic scattering and ordinary physics, the supposedly 'fix" the problem by adding in three (and ultimately four) different *supernatural* constructs.
Instead of fixing their oversight of the effects of inelastic scattering in plasma, they compounded the problem by adding in four unique "leaps of faith" in processes that have *never* been seen in labs on Earth:
A) "Expanding space" because ordinary object movement wouldn't work to fix their error!
B) "Inflation" (which supposedly starts the "expanding space" process in motion)
C) "Dark energy" (Not even a *tiny* bit of inelastic scattering can be accepted as an alternative)
Now of course since they have obligated themselves to switching from a potentially static universe to an 'expanding space' universe, and they are emotionally attached to their nucleosynthesis "predictions", they must also add yet another exotic supernatural form of matter to the mix, or the house of supernatural mathematical cards will fall.
So there you have it. The mainstream made a simple and bonehead error by completely neglecting the amount of scattering taking place in spacetime. Instead of *fixing* that obvious empirical error which lab experiments conclusively demonstrate, they instead choose to *compound* their first error by adding in three *more* pure "acts of faith" to the mix, and added yet another supernatural dark matter cherry on top to make the math work out in their supposed favor.
When you take a look at the photon redshift phenomenon honestly, it's pretty obvious that the most likely 'cause' of that phenomenon is ordinary inelastic scattering processes in plasma as we observe in labs here on Earth.
When confronted with that fact, I hear three basic handwaves:
1) Distant galaxies aren't blurry - But they can never produce a picture of Z>10 redshift galaxy that isn't "blurry".
2) Inelastic scattering has been ruled out: Apparently this was all accomplished by one superhero named Zwicky in 1929, even though Zwicky never even considered *most* types of inelastic scattering, or combo options, and he was *selling* his own "tired light" theory to boot!
3) Ned Wright is the unpublished demi-god on all topics related to "tired light", who like every other astronomer on the planet can apparently only cite reference number 2 (Zwicky) as his sole published reference to support his claims.
That's their entire argument against inelastic scattering in a nutshell. In almost 90 years they haven't done *squat* in terms of factoring in *any* logical amount of inelastic scattering to their equations. Instead they invented a whole host of supernatural elements and turned the whole thing into a supernatural creation mythos! Oy Vey.
One simple error, and four supernatural forms of gap filler are all the result of that one simple error.