Today, 75 years after Bretton Woods, we are entering the next era of money. Thanks to new technologies like the Internet and blockchain, we now have globally scalable ways of "stamping" and transferring digital assets, or tokens, with widespread, provable legitimacy—the kind that has the power to create networks of belief on which all money depends. This is Money 3.0, in which money comes from people. Money is now programmable, like software, and can be designed according to any criteria. Imagine a currency that is programmed to pay its taxes, bit by bit, with every transaction. Imagine a currency programmed...