Part 4/14:
Building upon this coincidence, the theory proposes that our universe was birthed on the “outside” of a black hole within some parent universe. This parent universe could itself be a black hole, creating a recursive, nested structure. Classical physics—guided by Einstein's general relativity—predicts that objects collapsing under gravity tend toward singularities, points of infinite density where physics as we know it breaks down. The Big Bang itself is often modeled as beginning from such a singularity.