For six years we’ve explored the biggest global challenges. What did we learn, and what are we going to do next? — What next? After six years of making Weapons of Reason, we’ve come to the conclusion that short-term thinking in global leadership is at the heart of the world’s most complex problems. So what are we going to do next? Well, for starters, we’re Kickstarting a 260-page book on exactly that problem, bringing…