Our crack economics duo, Producer Alex Blumberg and NPR International Economics Correspondent Adam Davidson, on how a dead, slutty, elitist British man, John Maynard Keynes, is about to take over the American economy. President Obama's new stimulus plan relies on Keynes'; theory, which says that government can spend its way out of a downward economic spiral. Alex and Adam explain why this might actually be the first ever test of this very old idea. You can hear Alex and Adam's other economics stories on the Planet Money podcast. (20 minutes)