Comment by t8sr

I’m admittedly a few years out of date in this, but weren’t those already kinda ruled out? I’ve never met anyone who took MOND seriously - it looks like it’s a pet project of a small number of people who cite each other, and people in different subfields have always been saying it doesn’t work for them (diffuse galaxies, etc.).

I know the current models favor cold DM, I thought the hot DM model was abandoned already when it became clear that clusters of any size exist?