Macroscopic Decoherence Stand-by: Boundary Conditions and Local Rendering in Vibrational Quantum Theory

This paper extends Vibrational Quantum Theory (VQT) to the macroscopic regime by formalizing the concept of "macroscopic decoherence stand-by". We demonstrate that an isolated macroscopic system (e.g., a room with no observers or measuring devices) does not require continuous environmental monitoring or external computational rendering to maintain a well-defined state. Instead, in the absence of local vibrational interactions, the system naturally enters a compressed informational regime characterized by null relational time and non-local propagation. The transition to classical, localized behavior occurs exclusively upon the establishment of a cross-entanglement channel with an external observer. The work clarifies the boundary conditions, thermodynamic implications, and geometric interpretation of this phenomenon, distinguishing it from both standard quantum decoherence and simulation-based hypotheses. This framework offers a physical mechanism for macroscopic latency and provides a foundation for further exploration of observer-dependent emergence in quantum and informational theories. Keywords: Vibrational Quantum Theory, Macroscopic Decoherence, Informational Compression, Relational Time, Quantum Stand-by, Stratified Superposition, Coherence Redistribution Additional notes: Independent theoretical work. No new experimental data. Builds upon previous papers in the VQT series.