As the G20 leaders prepare to conclude their meeting today, once again good news has had a half-life in the markets of less than 24 hours. Just as news of European plans to stand behind Spanish banks rallied markets and sentiment for only a few hours, a Greek election outcome that was as good as could have been hoped did not even buoy markets for a day. There could be no clearer evidence that the current strategy of vowing that the European system will hold together, addressing each crisis as it comes in the minimally sufficient way and vowing at every juncture to build a system that is sound in the long term has run its course.