[icodestuff]

I think something like the bullet cluster, where you have gravitational lensing consistent with a collision-less fluid, leading a baryonic colliding gas (which we know is present from X-ray emissions), was a prediction of CDM. So it hasn’t predicted nothing, but yeah, I want to see more.

[throwawaymaths]

I don't recall that to be the case. Bullet cluster was a post hoc explanation, not a prediction. Can you find me a citation where they say "we should see matter detached from dark matter" before the bullet observation? I'll happily change my memory on this. I do recall finding something that LCDM predicted though (can't remember off the top of my head it was)

In fact LCDM shouldn't predict the bullet cluster, a collision that fast between galaxies is extremely rare in LCDM models.