M = E < C. Resolves duality of matter/energy (wave/particle) characteristics of electrons and quantum level absorbtion/emmision characteristics of electrons. In other words, all matter consists of energy below the velocity of light. Why does electical current travel at near the velocity of light? Why do electrons emit photons when they drop to a lower quantum level? Where do the photons come from? Everything fits. Think about it a little. More later, maybe. If I don't get deleted again.