Prediction MachinesThe idea of artificial intelligencejob killing robots, self driving cars, and self managing organisationscaptures the imagination, evoking a combination of wonder and dread for those of us who will have to deal with the consequences. But what if it's not quite so complicated? The real job of artificial intelligence, argue these three eminent economists, is to lower the cost of prediction. And once you start talking about costs, you can use some well