To drive people out of their comfort zones, you have to cultivate dissatisfaction, frustration, or anger at the current state of affairs, making it a guaranteed loss. “The greatest communicators of all time,” says communication expert Nancy Duarte—who has spent her career studying the shape of superb presentations—start by establishing “what is: here’s the status quo.” Then, they “compare that to what could be,” making “that gap as big as possible.”