I am more convinced by the argument that dark matter is not new matter but just primordial black hole https://scitechdaily.com/all-dark-matter-in-the-universe-

I am more convinced by the argument that dark matter is not new matter but just primordial black hole https://scitechdaily.com/all-dark-matter-in-the-universe-could-be-primordial-black-holes-formed-from-the-collapse-of-baby-universes-soon-after-the-big-bang/ https://scitechdaily.com/all-dark-matter-in-the-universe-cou... And even our planet 9 is (unlikely but ...) https://phys.org/news/2020-08-planet-primordial-black-hole.html https://phys.org/news/2020-08-planet-primordial-black-hole.h...