Will the floundering of the E.U.’s single currency persuade member nations to submit to further federation? Andrew Stuttaford says there’s not a lot of fellow-feeling in the “imaginary European family” but the current crisis may overcome profound apathy and alienation to provoke a more unified union. Today’s ‘two-speed’ union will continue to exist, but on one side “there will be something that looks suspiciously like a European superstate,” he predicts.