The Curiosity Gap Technique
Create knowledge gaps that pull people toward your message irresistibly
The Curiosity Gap Technique leverages George Loewenstein's information gap theory to create and sustain audience engagement. The core insight is that curiosity is triggered when we perceive a gap between what we know and what we want to know—and this gap creates an emotional itch that demands to be scratched. The technique has two phases: first, highlight what the audience does not know to open the gap (this is the surprise or unexpected element), and second, provide enough context for them to care about closing it (this sustains engagement). The Heaths demonstrate that most failed communications make the opposite error—they provide answers to questions nobody has asked yet. Before you can deliver information, you must first make people want it. Movie trailers, mystery novels, and great teachers all instinctively use this technique by posing questions before providing answers, by revealing partial information that demands completion, and by structuring sequences so that each piece of information opens a new gap.
- Curiosity is triggered by a perceived gap between what we know and what we want to know
- You must make people want the answer before you give it to them
- Partial information is more engaging than either no information or complete information
- Each answer should open a new question to sustain engagement through longer communications
- Identify What Your Audience Thinks They KnowBefore you can open a gap, you need to understand your audience's existing mental model. What do they currently believe about your topic? What assumptions are they making? The gap you create must be between their current understanding and a surprising truth—which means you need to map their current understanding first. This also prevents you from opening a gap that is too large, which creates confusion rather than curiosity.Pro tipStart presentations by asking the audience what they think they know—their answers reveal exactly where to place the gapWarningA gap that is too large creates anxiety rather than curiosity—people need enough context to care about closing it
- Open the Gap with Surprise or MysteryPresent a fact, question, or scenario that violates your audience's expectations and creates an urgent desire to resolve the dissonance. The Heaths give the example of a journalist who opened a story about a school board meeting—the dullest possible topic—with the question why did the school board agree to spend over eleven thousand dollars on a sixty-seven cent computer part? Suddenly everyone wants to know the answer. The surprise transforms passive listeners into active seekers of information.Pro tipThe strongest gaps come from revealing that something your audience is confident about is wrong or incompleteWarningClickbait opens gaps with no satisfying payoff—always deliver on the curiosity you create or you destroy trust
- Sustain Engagement by Sequencing GapsFor longer communications, do not open one gap and then close it—create a sequence where closing one gap opens another. This is the structure of every compelling mystery, great lecture, and binge-worthy television series. Each piece of information you provide should resolve one question while raising a new one, creating a chain of curiosity that pulls people through your entire communication without their attention wandering.Pro tipOutline your communication as a series of questions rather than a series of topics—each section should answer the previous question and pose the next
Journalist Nora Ephron described a transformative moment in her high school journalism class. The teacher gave students a set of facts about a school event and asked them to write the lead. Every student wrote a conventional who-what-when-where lead. The teacher then revealed that the real lead was there will be no school next Thursday because all the teachers would be attending a conference. The unexpected information transformed a routine assignment into a lesson about finding the surprising core of any story.
The Heaths drew on George Loewenstein's 1994 paper on the psychology of curiosity, which proposed that curiosity arises from an information gap—the perception that there is a difference between what we know and what we want to know. Loewenstein showed that curiosity behaves like a physical appetite: it is an uncomfortable state that motivates action to satisfy it. The Heaths applied this insight to communication, showing that sticky ideas always manage to open a curiosity gap before attempting to fill it. They found that the most common communication mistake was presenting conclusions before creating any desire to hear them.