>>16712815 (OP)The paper doesn't show that at all. It's also demonstrably wrong. If it were due to dusty galaxies the CMB could easily be resolved into individual star-forming galaxies by higher resolution telescopes. In the paper they calculate the Placnk space telescope had just 6 galaxies per resolution element in their model, so telescopes like SPT, LMT and ALMA, with much higher resolution would not see a background at all, but individual sources.
Not mentioned in the paper is the cosmic infrared background, which is a few percent as bright as the CMB. The CIB can be resolved into individual sources, it is the combined light of dusty star forming galaxies. Astronomers have already detected what they propose, it is nothing like the CMB.
> recently discovered Early Mature Galaxies Nope. The galaxies they invent are about 1000 times more massive than the galaxies seen by JWST. They are just bullshitting.
They have no explanation for the detailed fluctuations and blackbody spectrum, which just happen to match big bang predictions.