The complete gravitational collapse of a body in general relativity will result in the formation of a black hole.
Although the black hole is classically stable, quantum particle creation processes will result in the emission of Hawking radiation to infinity and corresponding mass loss of the black hole, eventually resulting in the complete evaporation of the black hole.
Semiclassical arguments strongly suggest that, in the process of black hole formation and evaporation, a pure quantum state will evolve to a mixed state, i.e. there will be 'information loss'. There has been considerable controversy over this issue for more than 40 years. In this review, we present the arguments in favor of information loss, and analyze some of the counter-arguments and alternative possibilities.
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UNRUH, William G. and WALD, Robert M., 2017. Information loss. Reports on Progress in Physics. July 2017. Vol. 80, no. 9, p. 092002. DOI 10.1088/1361-6633/aa778e.
Payment in general, and prices in particular, are characterized by a high degree of information loss: the payer does not provide information on the origin of the money, and the payee is not required to explain what will become of the money. That means that a price-oriented system can function almost without Memory: we do not remember who executed the payment and why, and who could not execute payment. The payee is immediately free to use the money for any other combination.