Fuzzballs

A proposed solution to the black hole information paradox within string theory. It replaces the enigmatic, point-like singularity and the vacuum of a classic black hole with a vast, complex, and fuzzy ball of vibrating strings - the "fuzzball." This structure has no event horizon in the traditional sense; its intricate stringy surface extends to where the horizon would be. The key idea is that the information about everything that falls into the fuzzball is not lost behind a horizon, but is non-locally smeared and preserved across its entire surface, much like information is stored in a hologram. As the fuzzball evaporates via Hawking radiation, this information can be gradually and unitarily released, preventing the paradox of information loss.