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Explore the theoretical physics of black hole evaporation and disappearance in this advanced conference talk examining what occurs at the final stages of black hole evolution. Delve into the limitations of semi-classical evolution theory and discover how the final Cauchy slice potentially breaks into distinct components - one remaining behind the event horizon and another detaching to become a slice for future time evolution in perturbed empty space. Examine the contradictory evidence from evaporating AdS black holes in two dimensions and learn about a novel scenario analyzing evaporating black holes through modified JT gravity that accommodates both empty AdS and black hole solutions. Understand the proposed mechanism of baby universe emission that extracts the original matter forming the black hole, utilizing global symmetry violation principles in quantum gravity to transform the black hole into an excited horizonless state that disappears through reliable semi-classical evolution. Gain insights into cutting-edge theoretical work addressing fundamental questions about black hole physics, spacetime geometry, and quantum gravity effects in the context of the Workshop on Quantum Aspects of Black Holes and Spacetime.
