Dark matter cannot do anything one needs it to do. There are very few assumptions in the cold dark matter paradigm (you can describe them all with just a few p

Dark matter cannot do anything one needs it to do. There are very few assumptions in the cold dark matter paradigm (you can describe them all with just a few parameters). Meanwhile, there are many different observational probes of dark matter, and they all have to agree with the predictions of the theory. There are many ways that one could seek to falsify the cold dark matter paradigm. The thing is, so far, the paradigm has passed all the tests people can think of.