The Timeless Boundary State in Black Holes: A Limit Case of Physical Describability

This work is the English translation of the German manuscript “Der zeitlose Grenzzustand als Grenzfall physikalischer Beschreibbarkeit in schwarzen Löchern. Eine zustandslogische und quantenphysikalische Einordnung” (Lauermann, 2026, Zenodo, DOI: 10.5281/zenodo.18725340). This work investigates the timeless boundary state in black holes as a limit case of physical describability. The analysis is based on fundamental physical concepts such as state, distinguishability, degrees of freedom, process, and time. Under extreme conditions of spacetime curvature, degrees of freedom lose their independent structure. Alternative states can no longer be meaningfully distinguished, processes can no longer be formulated, and time loses its function as an ordering parameter. The timeless boundary state is therefore not interpreted as a dynamical special case or as a classical singularity, but as a structural limit of the applicability of physical state logic. The work follows a conceptual and structural approach and does not claim to provide a formal theory of quantum gravity. Its aim is to clarify the conceptual status of this limit case occurring in the context of black holes and to identify the conditions under which physical descriptions of time and dynamics remain meaningful. The analysis touches on topics related to the non-factorizability of Hilbert spaces in the context of black holes as well as on approaches that discuss the non-fundamental nature of time in quantum gravity. However, the present work does not pursue a formal mathematical treatment. Instead, it reconstructs the timeless boundary state as a structural consequence of fundamental state logic.