When you set up your success spiral, the planning fallacy will mess you up, because you’ll think, “How often will I exercise? Oh, five times a week sounds doable. I’ll start there.” Then life happens. You catch a cold. A work project demands extra time. A birthday anniversary holiday vacation date thing comes up. The gym closes early on Sundays. You drink too much one night. Before you know it, you’re toast, and your success spiral cracks.
