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2026-01-30 01:18:14 UTC
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Skewray Research on Nostr: nprofile1q…cgu9p My intuition is that grav-only DM *particles* are impossible. At ...

My intuition is that grav-only DM *particles* are impossible. At some temperature, whatever DM is should equilibrate with other junk. If gravity only, DM would need to be some weird thing like Milgrom & friends.

WIMPs have plenty of space to hide in, and we haven’t even measured neutrino mass yet. I’m not worried enough yet to consider the truly weird.