Our understanding of the universe changes all the time as we gain more information. I find this rationale approach very good, but it can also be really frustrating when debating the origins and composition of the universe with someone who takes theories as "categorical" truths.
I know this is about a fundamental physics question, but what jumps out at me is that JWST can resolve individual Cepheids at 130m light years distance !!! What an incredible marvel of engineering.
I cannot wrap my head around the idea Giant Magellan Telescope will have at least four times the resolution (in some situations up to 20x) as JWST in a few years
Now they need to build a second JWST and send it to opposite side of solar system for Very Long Baseline Interferometry :-)