Whether or not black holes have "no hair" is currently an unsolved problem. Hawking, for instance, believes that the Hawking Radiation from a black hole encode

Whether or not black holes have "no hair" is currently an unsolved problem. Hawking, for instance, believes that the Hawking Radiation from a black hole encodes the information that went into creating the hole. https://en.wikipedia.org/wiki/Black_hole_information_paradox#Hawking_radiation https://en.wikipedia.org/wiki/Black_hole_information_paradox...