Information may be preserved in a black hole's event horizon from "summary" of The Fabric of the Cosmos by Brian Greene
According to the laws of quantum mechanics, information cannot be destroyed. When it comes to black holes, this principle poses a significant challenge. As matter falls into a black hole and crosses the event horizon, it seems to vanish from our universe. If information is indeed conserved, what happens to the information of the matter that has been swallowed by a black hole? Stephen Hawking proposed that black holes could actually destroy information, a concept that caused quite a stir in the physics community. However, this idea led to a paradox known as the "information loss paradox" - a conflict between the principles of quantum mechanics and general relativity. Quantum mechanics dictates that information is always preserved, while general relativity suggests that information can be lost in a black hole. To resolve this paradox, physicists began to explore the idea that information might be effectively preserved on the event horizon of a black hole. The event horizon is the boundary beyond...
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