The most powerful persuasion “engine” isn’t information. It’s not just a story, either. Instead, it’s something most people never even think of. In a sales presentation, your job is to move your prospects between two points: 1. What is (the current reality) 2. What could be (the future state they want) In our work at Duarte, we call it the Sparkline. This is where persuasion happens. Watch a world-class communicator give a speech or make a presentation, and I bet that you’ll notice a similarity between all of them: They constantly toggle between the current reality and their vision for a better future. They don’t just describe a problem. They contrast it with a vision of what’s possible. Then they return to the current reality, and then lift the audience again into a better one. That back-and-forth movement creates emotional momentum. Describing “what is” makes an audience feel the weight of their current challenges. And showing “what could be” helps them imagine a future where those challenges are resolved. The contrast creates a natural pull toward change because the present starts to feel too limiting and the future too compelling to ignore. That’s when the real persuasion happens.