The modern world faces tremendous challenges: growing political and social tensions, scientific disagreements that defy consensus, and existential threats from advanced technologies. We've thrown billions of dollars and millions of people at these challenges, yet they remain unsolved. It's my belief that they stubbornly refuse to yield to our efforts because attempts to solve them run up against the limits of our ability to know the truth, and we won't make progress until we learn to work with rather than against the fundamental uncertainty inherent in our world.

— from Chapter 8