Astrophysicists seriously know fuck all about "space"
(files.catbox.moe)
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Nah, most of the "tabletop" physics is pretty well established. Whether it's understood or not is a different question. But Entanglement etc are massively repeatable, so they obviously exist, at least phenomenologically.
Other things, like red-shifts establishing 'dark energy' are much more suspect.
Their observation: "the further things are, the more red shifted they appear, meaning they're moving away faster."
Their dumb conclusion: things keep speeding up the more empty space there is between them and eventually everything will be infinitely far away moving away faster than light.
My conclusion: further away means further in the past, so if things were redder/faster in the PAST then the expansion is slowing down over time, which you'd expect from a regular gravity in a regular universe without magical dark energy.
I would tend to agree with you. It's odd making conclusions about 13 billions years of history based on... 100 years of observations.