We think we’ve seen financial innovation. We bank from laptops and buy coffee with the wave of a phone. But these are minor miracles compared with the dizzying experiments now underway around the globe, as businesses and governments alike embrace the possibilities of new financial technologies. As Eswar Prasad explains, the world of finance is at the threshold of major disruption that will affect corporations, bankers, states, and indeed all of us. The transformation of money will fundamentally rewrite how ordinary people live.