Dark Energy as Background Information Pressure A Structural Interpretation Connecting Nuclear Stability and Cosmology within EQGT

Dark energy is conventionally introduced as an unknown component responsible for the accelerated expansion of the universe, typically modeled as a cosmological constant or an external field. While observationally successful, its physical interpretation remains unresolved. This paper presents a structural reinterpretation of dark energy within the framework of Existence-Quantized Geometric Theory (EQGT), identifying it as background information pressure rather than as an independent substance or force. In this view, information particles form a saturated, non-local background distribution that imposes global constraints on all local physical configurations. By extending EQGT from nuclear-scale compression stability to cosmological-scale dynamics, the analysis demonstrates how cosmic expansion, nuclear stability limits, decay lifetimes, and weak interaction phenomena can be understood as manifestations of a single background structural condition. This reinterpretation preserves the empirical validity of existing cosmological models while reframing dark energy as an effective parameter arising from information redistribution and finite observer resolution, without introducing new particles or fundamental interactions.