Elon Musk thinks Tesla's biggest business has nothing to do with its electric vehicles.Elon Musk is no stranger to bold statements. His comments, often hyperbolic, consistently capture far more attention than the standard rhetoric from corporate executives. Over the past several years, Musk has articulated a vision to evolve Tesla (TSLA 7.21%) beyond its roots as an electric vehicle (EV) and energy-storage company into a broader technology platform centered on artificial intelligence (AI).At the heart of th ...