This is how theoretical physics has worked for quite some time - someone figures out a hypothesis that works mathematically, and the experimentalists then prove or disprove it.
Is there a plausible experiment that can falsify dark matter? The study here used observational data and it didn't do that. (Deducing that non-existence of dark matter is plausible given what else was observed isn't the same thing.)
> “There are several papers that question the existence of dark matter, but mine is the first one, to my knowledge, that eliminates its cosmological existence while being consistent with key cosmological observations that we have had time to confirm,” Gupta confidently concludes.
> “There are several papers that question the existence of dark matter, but mine is the first one, to my knowledge, that eliminates its cosmological existence while being consistent with key cosmological observations that we have had time to confirm,” Gupta confidently concludes.