Challenges, Lagarde said, are low growth, rising inequality, and falling numbers of jobs. Resolve these three stumbling blocks and we may get the world to work better. The IMF alone cannot do it, nor even the IMF, World Bank, U.S. Government, OECD, European Union, United Nations together. We can’t channel the human mind to a higher level anytime soon, but we’d better tackle those three bugbears or we’re all sunk. The wealthy with the others.