"Unveiling the Thin Boundary: Black Hole Energy Factory vs. Black Hole Bomb"

The Penrose process, a method to extract rotational energy from black holes, could potentially yield up to 20% of a black hole's mass energy. A recent study explores the idea of extracting energy from charged black holes in anti-de Sitter space, considering the Bañados-Silk-West effect, which could lead to a black hole bomb. However, the study also suggests that in an empty anti-de Sitter universe, energy could be extracted from a charged black hole without leading to a black hole bomb, shedding light on the fundamental nature of space and time.