Consciousness as Constraint: How Biology Renders Physics Into Experience

This work presents a constraint-based account of consciousness in which subjective experience is not treated as a substance or emergent property, but as the rendered outcome of biological systems operating under physical limits. Rather than generating consciousness, biology is framed as a filtering and stabilizing interface through which universal physical processes become locally integrated, temporally coherent, and experientially accessible. The framework distinguishes between inclusive physical law and exclusive biological organization, proposing that conscious experience arises at the point where metabolic, informational, and structural constraints permit sustained coherence above a critical threshold. Consciousness, in this view, is neither purely biological nor purely physical, but an event of alignment between the two. By treating consciousness as a constrained rendering process, the model offers a parsimonious explanation for individuality, continuity of experience, and its termination at death, without invoking dualism or metaphysical assumptions. The approach is intended as a formal and representational construct, suitable for integration with neuroscience, thermodynamics, and information theory, and is explicitly framed as a methodological model rather than an ontological claim.