There are other hypotheses competing with dark matter which have revised models of gravity, it’s not just one guy: https://en.wikipedia.org/wiki/Entropic_gravi

There are other hypotheses competing with dark matter which have revised models of gravity, it’s not just one guy: https://en.wikipedia.org/wiki/Entropic_gravity https://en.wikipedia.org/wiki/Entropic_gravity https://en.wikipedia.org/wiki/Modified_Newtonian_dynamics https://en.wikipedia.org/wiki/Modified_Newtonian_dynamics