Two billionaire events happened last week Mark Zuckerberg and his wife, Priscilla Chan said they'd give away most of their wealth, and Elon Musk renewed his call for a carbon tax.
Both Zuckerberg and Musk want to change the world. Some have argued that by creating Facebook, Zuckerberg already has. I might argue that Musk hasn't. Yet.
But that doesn't mean he won't ultimately change it in far more profound ways. And both Chan and Zuckerberg should study him closely as they look to deploy the family's resources, which will stand at about $45 billion. Though Musk has given away some of his money, the thrust of his change-the-world vision has come from investment in his companies: Tesla, SpaceX, and Solar City. When he got very rich after the sale of PayPal to eBay, he took — as he often explains it — all of his money and sank it into those three enterprises.