Anti-fragility is a brilliant concept, put forward by Taleb in his wonderful books: Fooled by Randomness, The Black Swan and Anti-fragility. These concepts can be applied to make projects stronger, and thrive on challenge. As project professionals, our job is to deliver change. We steer our projects through complex and ever-changing environments, handling adversity to deliver on time, cost and scope. Threats arrive from all directions, both internal and external, and the longer the project runs, the more volatility it will be exposed to.