Black Holes as a Medium of Self-Replicating Dark Particles: A Singularity-Free Model

This paper proposes that a black hole’s interior is not a singularity but a dense medium of hypothetical self-replicating dark particles. The hypothesis is placed within the established line of regular (non-singular) black holes (Bardeen’s regular metric, gravastars, Planck stars). Its originality is identifying the interior medium with a self-replicating substance, linking supermassive black-hole growth to cosmic expansion — echoing the actively debated hypothesis of cosmologically coupled black holes (Farrah et al., 2023). Strong gravity is explained by intense substrate consumption rather than infinite density. The model must reproduce the EHT shadow and LIGO/Virgo merger signals. A testable criterion (cosmological coupling of black-hole mass, H0 = r/3) and a falsification condition are given.