Finishing Einsteins E=mc²

E=mc² (Version 2) SoThis updated version refines and extends the original proposal that mass is best understood as magnetically compressed energy, rather than an independent property of matter. Within this magnoelectric framework, energy arises from the release of magnetic tension into electric motion, and the familiar speed of light squared is reinterpreted as the electric liberation threshold—the upper limit for converting stored magnetic energy into active electric behavior. Version 2 introduces improved terminology, a structured glossary for key definitions, and a clearer explanation of how this reinterpretation aligns with classical physics while offering an alternative view of inertia, mass, and energy. The paper presents a balanced field interaction between electric and magnetic forces as the foundation of mass-energy equivalence, avoiding speculative detours while proposing testable ideas within established physical boundaries. This framework aims to support ongoing discourse in theoretical physics by offering a logically consistent and mathematically approachable pathway for understanding the relationship between magnetic structure and electric activation. ---