I was interested in her claim that the Bullet Cluster is evidence against dark matter.
The scientists estimated the probability for a Bullet-Cluster-like collision to be about one in ten billion, and concluded: that we see such a collision is incompatible with the concordance model. And that’s how the Bullet Cluster became strong evidence in favor of modified gravity.
Sabine thinks it’s both.
I was interested in her claim that the Bullet Cluster is evidence against dark matter.