Finally, we can operationalize this mindset. Set kill criteria in advance—conditions under which you will stop or pivot—so decisions are not hijacked by sunk costs. Use time-boxed experiments and premortems (Gary Klein, 2007) to imagine failure early and reroute cheaply. Cycle through the OODA loop—observe, orient, decide, act (John Boyd)—to avoid fixating on a single path. And keep a stop-doing list alongside your to-do list to reclaim resources. By institutionalizing redirection, you transform Chanel’s warning into a habit: spare your strength on the wall, and spend it designing the next door. [...]
