Uploaded February 2026 | Updated September 2026, 2 hours ago
Can black holes create new universes?
Physicist Lee Smolin thinks they might. His theory of Cosmological Natural Selection proposes that every black hole gives birth to a “baby universe,” with slightly different physical constants. Over cosmic generations, universes that produce more black holes become more common. In other words, the universe evolves.
It’s a bold idea. Almost a kind of cosmic Darwinism.
In this episode, we break down Smolin’s theory step by step:
How black holes could generate new universes
Why small changes in physical constants are crucial
The claim that our universe is optimized for black hole production
And the deeper “meta-law dilemma” that challenges the entire framework
Smolin’s proposal is one of the most creative scientific attempts to explain the fine-tuning of the universe without appealing to God or to a traditional multiverse. Unlike many multiverse theories, it actually makes testable predictions. But does it work? Has it been falsified? And even if it succeeded, would it really eliminate the need for a deeper explanation?
We’ll examine the scientific arguments, the philosophical implications, and the serious problems that cosmological natural selection faces.
If you’re interested in fine-tuning, black holes, the multiverse, the scientific method, and the question of whether the universe requires an intelligent cause, this is an episode you don’t want to miss.
Can black holes create new universes?
Physicist Lee Smolin thinks they might. His theory of Cosmological Natural Selection proposes that every black hole gives birth to a “baby universe,” with slightly different physical constants. Over cosmic generations, universes that produce more black holes become more common. In other words, the universe evolves.
It’s a bold idea. Almost a kind of cosmic Darwinism.
In this episode, we break down Smolin’s theory step by step:
How black holes could generate new universes
Why small changes in physical constants are crucial
The claim that our universe is optimized for black hole production
And the deeper “meta-law dilemma” that challenges the entire framework
Smolin’s proposal is one of the most creative scientific attempts to explain the fine-tuning of the universe without appealing to God or to a traditional multiverse. Unlike many multiverse theories, it actually makes testable predictions. But does it work? Has it been falsified? And even if it succeeded, would it really eliminate the need for a deeper explanation?
We’ll examine the scientific arguments, the philosophical implications, and the serious problems that cosmological natural selection faces.
If you’re interested in fine-tuning, black holes, the multiverse, the scientific method, and the question of whether the universe requires an intelligent cause, this is an episode you don’t want to miss.
