The “Art of War” maintains that if you know the date and place of the battle, you can be well-prepared for it even if your troops have to march a thousand miles before engaging the enemies. The International Monetary Fund (IMF) has given us a framework for thinking about the future: In 2030, there will be a reshuffle of the rankings of the world’s biggest economies. But if there are human interventions, how can we look at the unknown future?