>>12691680>Dark matter models have made numerous successful predictions, such as the shape of the CMB powerspectrum.First off they haven't predicted the CMBs spectrum, rather the model has fit all the measurements of it we have taken. Key point, we started measuring the CMB well before dark matter theories started (let alone CDM getting traction).
Yes there are measurements we can take, and we can see which models they fit into and which they don't. Evidence is not the same thing as fine tuning your theories to fit measured data.
Theres a reason why were even debating this in the first place, there are some pretty big holes in the various dark matter theories and none of them can actually seal the deal. Just like many of the predicted dark matter structures aren't observed, gravitation lensing does still happen in places where it shouldn't. Just because some things line up with dark matter, like measuring the CMB, that doesn't mean dark matter *has* to exist.
IMO dark matter is probably something that we already know about, be it some kind of cold dense plasma, neutrinos, or something else gay like gravitation wave constructive interference on a galactic scale. I think its really really really unlikely that theres some magic conditions of the vacuum state that allow special forms of matter to exist, let alone special forms of energy. And I think its way more likely that the big bang theory isn't 100% when it comes to the expansion of space.
