Subjective Time Equity Theorem Based on Real-Virtual Dual Field Theory and Its Complete Mathematical Derivation

Based on the three core axioms of Real-Virtual Dual Field Theory (real-virtual field coupling, intrinsic field resistance, and conjugate golden decay law), this paper breaks through the single perspective of traditional studies that explain lifespan solely by metabolic rate. It incorporates multi-dimensional factors such as material structure strength, elemental bonding properties, system redundancy and repair mechanisms into a unified mathematical model, and rigorously derives the Subjective Time Equity Theorem. The study shows that the objective lifespan of a life system is jointly determined by field information exchange frequency (metabolic rate) and intrinsic fault tolerance threshold of material structure. Within the same material structure level, the total subjective experience of a life throughout its life cycle is a constant independent of metabolic rate, namely strict equity. Across structural levels, the total subjective experience grows sublinearly with the increase of structural strength, and its growth rate is far lower than that of objective lifespan, namely relative equity. On this basis, this paper quantifies the marginal cost of two lifespan extension paths — metabolic regulation and structural reinforcement — combined with the conjugate golden decay law, proves the physical impossibility of absolute immortality from the first-principle level, and completes a complete mathematical closed loop from underlying field rules to material carriers and then to life consciousness.