The neutrino was discovered the same way. Conservation of momentum appeared to be violated, so we invented a new particle to save the conservation law.
Ironically, neutrinos are one type of dark matter. Hot dark matter.
I'm not saying that it's not a problem that we haven't seen cold dark matter in the lab yet. But the fact that dark matter sceptics are almost always not astrophysicists should tell you something.
Ah. No white lab-coat in the wardrobe. And I'm not an astrophysicist, might as well just flag me.
Look, I'm not a "sceptic"; that's like climate sceptic, i.e. non-believer zealot. I don't have a conviction about DM; I'm just waiting to be convinced.
I think most of us are waiting to be convinced. Current models don’t explain everything but the standard model and DM explain more than any competing theory so far. That’s why we keep investigating and theorizing to see if we can come up with something better. Eventually the current models are likely to be replaced by something else. We just don’t know yet if that something else is an extension of the current models or something out of the blue.
Ironically, neutrinos are one type of dark matter. Hot dark matter.
I'm not saying that it's not a problem that we haven't seen cold dark matter in the lab yet. But the fact that dark matter sceptics are almost always not astrophysicists should tell you something.