that's correct, it doesn't make sense. it's called violating the Liouville theorem, a basic assumption of science. and when the eminent Hawkings came up with a solution, not all scients agreed, as:
"His argument assumes the unitarity of the AdS/CFT correspondence which implies that an AdS black hole that is dual to a thermal conformal field theory, is unitary."
"His argument assumes the unitarity of the AdS/CFT correspondence which implies that an AdS black hole that is dual to a thermal conformal field theory, is unitary."
