“It’s not easy to recognize, in real time, when you’re throwing good money after bad—which is why I think analyzing progress should be a “team sport.” You have to be willing to solicit input from people who have different perspectives on the project. To overcome the “sunk costs” fallacy, this helps to change the default incentive (to keep going) so people can feel good about saying it’s time to stop. Astro Teller, head of the radical innovation company called X at Alphabet (Google’s parent company), gives failure bonuses to employees who admit a project isn’t working.”