Emergence of Coulomb's Law and Lorentz Symmetry from the Internal Structure of the Electron as a Massless Matter-Antimatter Pair

We propose a constructive model in which the electron is not a primitive point charge, but a dynamical system composed of two massless charges (matter and antimatter) moving at speed c. First, we show that the instantaneous magnetic force between two such electrons, when averaged over the causal light-crossing time and over a 50% synchronization probability, reduces exactly to the classical Coulomb force. Second, we demonstrate that the physical condition of zero rest mass for the constituents, being invariant under the Principle of Relativity, uniquely forces the transformations between inertial frames to be Lorentzian. Consequently, the invariance of c is not a postulate but a theorem, derived directly from the model's assumptions. These results suggest that special relativity may be interpreted as an emergent property of the internal structure of matter, rather than a fundamental feature of spacetime. Finally, the model suggests that antimatter may be an internal constituent of visible matter, offering a possible resolution to the matter-antimatter asymmetry problem.