That article reads to me as if that theory is outright incompatible with the experimental evidence. Like: tired light predicts the wavelength of light from dist

That article reads to me as if that theory is outright incompatible with the experimental evidence. Like: tired light predicts the wavelength of light from distant sources gets increased. Expanding universe predicts that—and additionally, that distant objects will be appear to be undergoing time dilation, by the same factor as their redshift. Astronomical observations of distant supernovas' light curves shows the latter. Here's a page focused on explaining this stuff: https://www.astro.ucla.edu/~wright/tiredlit.htm https://www.astro.ucla.edu/~wright/tiredlit.htm - "The tired light model does not predict the observed time dilation of high redshift supernova light curves. This time dilation is a consequence of the standard interpretation of the redshift: a supernova that takes 20 days to decay will appear to take 40 days to decay when observed at redshift z=1."