Adam Grant’s newest New York Times bestselling book Think Again asserts that learning zones are created when psychological safety is combined with process accountability. When people feel free to experiment—and to poke holes in one another’s experiments in service of making them better—they become a challenge network that serves to question assumptions and avoid shallow decision-making. Simply asking “how do you know” at a critical moment in the decision-making process can be the difference between a smooth launch and a botched launch. Use this flight plan, developed with Adam Grant, to rethink your decision-making process so far and push your team to question your assumptions before taking the next step.