"Rate your plan's real-world follow-through before starting The speaker distinguishes between a plan that works in theory and one you will actually execute, noting that 'a lot of people are very good at setting goals but then the plan they choose to follow just doesn't make sense.' He applies an 80% threshold: if the honest probability of you sticking to the plan is below 80%, the plan needs to change — not your willpower. For example, 'if my goal was to reduce visceral fat and part of my plan was running for five hours a day, in theory that would work, but what are the chances I'm actually going to do that?' Before starting, score both dimensions honestly and redesign any plan that fails either test. Source: Ali Abdaal, Ali Abdaal YouTube, How to Actually Achieve Your Goals — The GPS System"