2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/181946Perturbative dynamics of gravity is investigated for high energy scattering and in black hole backgrounds. In the latter case, a straightforward perturbative analysis fails, in a close parallel to the failure of the former when the impact parameter reaches the Schwarzschild radius. This suggests a flaw in a semiclassical description of physics on spatial slices that intersect both outgoing Hawking radiation and matter that has carried information into a black hole; such slices are instrumental in a general argument for black hole information loss. This indicates a possible role for the proposal that nonperturbative gravitational physics is intrinsically nonlocal.21 pages, harvmac. v2: minor wording changes and added referencesHigh Energy Physics - TheoryGeneral Relativity and Quantum Cosmologytext