Self-driving cars, Mars colonies, brain implants, the Twitter takeover, artificial intelligence: the world according to Elon Musk… and science!

The world's richest man has invested in every contemporary scientific field, revolutionizing the space sector, influencing the development of virtual currencies, and taking a stance on artificial intelligence, attempting to transform neuroscience by connecting computers to human brains. But does any organized scientific thought underlie this great jumble of innovation? What are the major technical, biological, and computer principles Musk plans to take to their logical end and beyond? And what issues is he skipping over, simply because they'd put a halt to his futuristic visions?