Horizon Instability as an Admissible Reconstruction Obstruction

Horizon Instability as an Admissible Reconstruction ObstructionNo Uncertified Permanent Horizons under Standing-Conserving Exterior Reconstruction This paper develops a reconstruction-theoretic obstruction framework for permanent horizon structures within the AASC admissibility architecture. The result is not a derivation of Hawking radiation, a quantum-gravity proposal, or a dynamical evaporation model. Instead, the manuscript classifies which exterior reconstruction continuations remain admiss