To be resilient requires the flexibility to elegantly and successfully plan for the unknown and respond to the unexpected. But bravely going where no man has gone before is … fraught with challenge. Not everything we try is successful. Which means that, as the resilience community experiments with building resilience, some of our educated guesses about promising avenues won’t pan out. If we want to move the study and practice of resilience forward quickly, we need to share, learn from, and modify our practice on the basis of these lessons.