I believe Penrose and Hawking both like this idea, or rather the idea that black holes spawned "baby universes" [1]. Something is falsifiable if you can think

I believe Penrose and Hawking both like this idea, or rather the idea that black holes spawned "baby universes" [1]. Something is falsifiable if you can think up some empirical test that would refute it. That test doesn't need to be feasible. In the case of black hole universes, such a theory may be falsifiable, but we don't know enough about the composition of black holes to even formulate the tests. I'm not a physicist, but my impression is that falsifiability is less important to physics than the ability for a hypothesis to predict and explain observed phenomena. [1] https://www.salon.com/2020/10/18/why-physics-nobelist-roger-penrose-believes-there-are-black-holes-left-over-from-previous-universes/ https://www.salon.com/2020/10/18/why-physics-nobelist-roger-...