Forums and conferences where business stars share the "secrets" of their success gather thousands of businesspeople. It seems obvious that if we dissect the story of a successful individual or company and replicate the methods that worked for them, we'll achieve similar results. But this is a misconception.
The Pareto Principle, also known as the law of least effort, states that 80% of our efforts result in 20% of the outcomes, while 20% of our efforts result in 80% of the outcomes.