Kehle and Unger's recent mathematical proof demonstrates that there is nothing in our known laws of physics to prevent extremal black holes from forming, challenging previous assumptions.
Mihalis Dafermos described the new proof as 'beautiful, technically innovative, and physically surprising.' It suggests that 'extremal black holes could be out there astrophysically,' hinting at a richer universe.
Khanna emphasized that finding an extremal black hole would lead to 'some pretty radical kinds of questions,' highlighting the significance of the discovery for our understanding of the universe.
Before this proof, the existence of extremal black holes was thought impossible due to the assumption of the third law of black hole thermodynamics.
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