PBS Space Time S2021 E33 Are Black Holes Actually Fuzzballs?

Black holes are a paradox. They are paradoxical because they simultaneously must exist but can’t, and so they break physics as we know it. Many physicists will tell you that the best way to fix broken physics is with string. String theory, in fact. And in the black holes of string theory - fuzzballs - are perhaps even weirder than the regular type.