Black holes may not exist, but fuzzballs might, wild theory suggests
... Over the decades, theoretical physicists have been hard at work to find something — anything — to explain black holes. Something that explains the information paradox and something to replace the singularity with math that works.
Among those theorists are the ones working on string theory, which is a model of the universe that replaces all the particles and forces that you love with subatomic, vibrating strings. In string theory, these strings are the fundamental constituents of matter in the universe, but we can't see them as strings because they're so small. Oh, and in order for the math of string theory to work, there must be extra dimensions — all tiny any curled up on themselves to subatomic scales so that we don't see those, either.
String theory claims to be a theory of everything, capable of explaining every kind of particle, every kind of force, and basically everything in the universe (and, for completeness, the whole entire universe itself).
So string theory should be able to explain the unexplainable: it should be able to replace black holes with something less frightening.
And, indeed, string theorists have proposed a less-scary replacement for black holes. They're called fuzzballs. ...
