Henry Ford and Thomas Edison had a bet they would energize the future together, tells the story Michio Kaku. But what happened was the opposite of what many people thought - Henry Ford's vision for the internal combustion engine won out. Now, in the 21st century, Elon Musk's focus on creating super-batteries will bring Edison's ideas to final fruition. A new generation of batteries should be a gamechanger for solar energy as well.