Is there anything Elon Musk can’t do? First, he enabled the secure online purchase of dog treats and diapers with PayPal. Then he founded SpaceX, going broke in the process while everyone scoffed at his goal to design and launch a reusable launch vehicle. He did it in 7 years. And since money and rockets can get kind of boring for a South African billionaire, he moved on to cars with Tesla Motors. Now, he wants to change the world … for realsies this time.