Could the CMB arise from galaxies, not the Big Bang?

The cosmic microwave background (CMB) has traditionally been viewed as strong evidence for the Big Bang theory. However, recent observations from the James Webb Space Telescope (JWST) have prompted some to question whether the CMB might instead originate from early galaxies. While this idea challenges conventional understanding, it's important to note that scientific progress typically refines rather than completely overturns existing theories. Caution is warranted against sensationalist claims that lack solid evidence, as they can undermine legitimate scientific consensus.