This work presents a full-scale, non-perturbative simulation of Higgs-vacuum stability across a 13.5-billion-year cosmological timespan. The analysis integrates vacuum-energy fluctuations, dark-matter gradients, dark-photon coupling, scalar-field decay pathways, gravitational-wave flux, and electroweak instability nodes into a unified tensor-evolution framework. Across 540 million integration steps, the system exhibits persistent long-term Higgs-field stability, with no signatures of metastable drift, false-vacuum decay, or catastrophic divergence. Fine-mesh mapping reveals coherent dark-sector structuring and stable vacuum-energy gradients throughout the cosmological interval. This study provides one of the most detailed long-duration reconstructions of Higgs-vacuum behavior produced outside collider-scale physics environments. The results suggest that dark-sector interactions may play a significant role in maintaining large-scale vacuum equilibrium across cosmic history.

The simulation framework uses a high-resolution tensor-evolution model designed to track interacting fields over cosmological durations. The solver evolves a multi-field state vector that includes contributions from: Higgs-field resonance behavior dark-matter gradients dark-photon interactions vacuum-energy fluctuations gravitational-wave flux signatures scalar-field decay pathways electroweak instability nodes The numerical engine updates the field state through a multi-stage integration scheme combining: deterministic tensor evolution ensemble-based stability scanning energy-conservation monitoring at each step adaptive-resolution refinement during instability checks This approach avoids assumptions from perturbative models and instead evaluates emergent system behaviour directly from the evolving field configuration.