As valuable as rethinking is, we don’t do it enough—whether we’re grappling with the pivotal decisions of our lives or the great quandaries of our time. Complex problems like pandemics, climate change, and political polarization call on us to stay mentally flexible. In the face of any number of unknown and evolving threats, humility, doubt, and curiosity are vital to discovery. Bold, persistent experimentation might be our best tool for rethinking.
