An Energy-Efficiency Interpretation of Light: The Extremity of Free-State Energy

This paper interprets light as the extreme manifestation of free-state energy within Energy-Efficiency Theory (EET). It argues that the speed of light is a measurement benchmark, light-matter interaction is the Energy-Efficiency Cycle at the quantum level, and vision is an extension of the cycle into cognition. The framework provides a unified energy-ontological language for light, compatible with existing optics and relativity.