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( I keep telling you folks.... "There ain't no such thing as Dark Matter.")
Big Trouble in a Deep Void
Cosmology is currently in a major crisis because of many severe tensions, the most serious and well-known being that local observations of how quickly the Universe is expanding (the so-called ‘Hubble constant’) exceed the prediction of the standard cosmological model, ΛCDM.
By Indranil Banik, Moritz Haslbauer, and Pavel Kroupa
https://tritonstation.com/2020/10/23/big-trouble-in-a-deep-void/