Could every black hole be the seed for a brand new universe?
Physicists are investigating whether our universe originated inside a black hole. This theory, known as cosmological natural selection, offers a testable alternative to the anthropic principle for explaining why our fundamental constants are perfectly tuned for life.
The fine-tuning of our universe—where constants like electron mass and force strengths allow for stars, galaxies, and life—often leads to the anthropic principle, which suggests we simply exist in one of many universes that happened to get the numbers right. However, many scientists find this unsatisfying.
Cosmological natural selection proposes that universes evolve and that our own began within a black hole. This hypothesis suggests that every black hole formed in our universe could potentially spark the big bang of a new one, providing a mechanism for the existence of life-sustaining conditions that does not rely on pure chance.
