Imagine you figure out a new way to do something at work, saving you five hours each week. Over a year, you’ll save 260 hours. Now suppose you spent 10 hours teaching this work hack to 10 of your colleagues. At the end of the year, your productivity would be 4% lower (you’d only save 250 hours in total). But your 10 coworkers would save a combined 2,600 hours. But what if you didn’t share the tip? Read the article to defeat the fatal flaw.