Real wages have barely increased for more than a decade. Banks have had to be bailed out, and many still exist on a form of state life support. Growth has stalled, taxes are at 70-year highs, yet governments are still bankrupt. Unless you happen to be part of a tiny plutocracy made up mostly of tech entrepreneurs and financiers, there has rarely been a point, at least since the nadir of the mid-1970s, when the economic system seemed beset by quite so many challenges as it is today.