The Sparkline secret behind every effective speech

“There are three kinds of people: those who make things happen, those who watch things happen, and those who wonder what happened.” The line comes from a marketing handbook, not a rhetoric lecture hall. Still it describes exactly the problem I struggled with in my first years as a speaker, without being able to name it.

In that time I gave many keynotes I was proud of for every slide. Numbers cleanly derived, architecture understandable, no flaw in the chain. And still afterwards often: nothing. Approving nods in the room, friendly applause, and the week after everything continued as before. I was delivering reports, not speeches. I knew a good presentation needs ethos, pathos and logos – the triad of credibility, emotion and proof. I could quote the three words. What I lacked was the structure that actually brings all three together instead of ticking them off one after another.

Perhaps you read these lines because you are thinking about speeches. Perhaps you read them because an approval meeting is due next week. For both cases the same structure applies, and that is exactly what this is about.

This structure has a name. It does not come from classical rhetoric but from a very modern analysis of it. Nancy Duarte knows this craft first-hand: her agency worked among other things on Al Gore’s “An Inconvenient Truth” and on Steve Jobs’ keynotes. She examined hundreds of the most effective speeches in history for their form and distilled a pattern she calls the Sparkline framework. The name comes from the shape: on paper the structure looks like a jagged line that constantly swings between two poles.

Why reports move nobody

The core idea is simple, and exactly therefore easy to underestimate. An effective speech continuously oscillates between two states: what is, and what could be. Duarte describes the pattern as switching “between describing what the world is, and how it could be”. This movement she explains in her analysis of the structure of persuasive presentations. Every swing to the as-is deepens the pain. Every swing to the possible state deepens the longing. At the end of this repeated movement stands a point Duarte calls “New Bliss”: the moment when the audience no longer only understands the new reality but wants to feel it.

The decisive point for me was not the form itself but what it forces. A report describes only the as-is, however well evidenced. A pure vision describes only the to-be, however inspiring. Either alone moves nobody to act. Only the repeated contrast between both creates the tension that makes a decision inevitable. Exactly this tension had been missing in my early talks. I had described as-is states and named to-be states, but never oscillated. The talk was a straight line, not a Sparkline.

The first proof: even King needed this structure

Most impressively this shows in a speech Duarte herself analyses as a core example: Martin Luther King’s speech of 28 August 1963 before the Lincoln Memorial in Washington. Anyone who knows the text remembers the second half, the dream passage. But the first half of the speech follows a different pattern: that is exactly where the Sparkline begins.

King opens with an image he sustains through the whole first half: America has issued the fathers of the Constitution a promissory note, a promise of freedom and equality for all. For the Black population, King says, this cheque has come back marked “insufficient funds”. That is the as-is – concrete, vivid, uncomfortable. Directly afterwards comes the counter-movement: America will cash this cheque; the bank of justice is not bankrupt. As-is, to-be, as-is again. These switches repeat several times. Then gospel singer Mahalia Jackson, who had performed before King, calls to him during the speech: “Tell them about the dream, Martin.”

Many tell what follows as pure inspiration, and that is only half the truth. King had already used the dream passage two months earlier, on 23 June 1963 at the “Walk to Freedom” in Detroit, before a much smaller audience in Cobo Hall. So when Jackson called him out of the written manuscript on 28 August, King did not reach into emptiness. He reached back to a passage he had already delivered. He knew its effect in the room. What looks from outside like free improvisation was rehearsed mechanics he recalled at the right moment. That is a lesson that reaches far beyond rhetoric, and I will come back to it shortly.

From that point the Sparkline swings the other way and stays there. Sentence by sentence the to-be returns, “I have a dream”, again and again, until the final image: freedom ringing from every mountain in the land. The anaphora carries a continuous field of imagery, and the sentences themselves grow longer until they discharge in short, hard closing lines. That is cadence at the level of the single sentence: length that grows, then a sudden compression at the climax. The speech does not end with a summary. It ends on the strongest image.

Your approval meeting has the same problem

I have worked for years with decision-makers in corporations and upper mid-market who sign strategic investments. Most of them do not speak before two hundred thousand people. But every approval meeting carries structurally the same problem as my earlier speaking style. Whoever presents a decision usually delivers either a report on the as-is (numbers, risks, options) or a vision of the to-be (strategy, ambition, goal). Rarely do they consciously switch between both. The consequence is the same as with my first keynotes: agreement in the room, and the week after everything continues as before. I have examined exactly this pattern elsewhere, in the question why approved decisions are not executed. Approval is not execution. It is only the moment when a vision first meets a number.

From the Sparkline pattern and from my own decision work, three pillars have emerged for me. They ensure a decision does not end like my earlier speaking style but works like King’s speech: as a movement that continues even when the speaker has left the room.

The first pillar is inversion thinking, the thinking tool Charlie Munger shaped for decisions. Before painting the to-be, you ask: How does this decision fail for sure? This question sharpens the as-is, just as King’s promissory-note image sharpened it. A vague as-is creates no tension. A precise, even uncomfortable as-is, named before the vision begins, makes the contrast effective. Whoever skips the question and starts directly with the vision delivers a motivational speech. Whoever asks it delivers a Sparkline.

The second pillar carries a sentence from Dr Frederik Hümmeke, founder of VANTISGO: “Method on, head off.” It is the lesson from the Detroit scene. King could improvise in Washington because two months earlier he had not improvised. King had rehearsed the passage, delivered it in a real hall and tested its effect. When the moment came, he did not have to decide anew whether the image carries. He only had to recall the practised mechanism. For decisions that means: whoever reinventes the decision process in every new situation consumes in the meeting itself the energy the decision needs. Whoever instead builds a method once cleanly – morphological board, criteria catalogue, inversion question – gains something decisive. They then apply it with discipline instead of renegotiating it every time. In the moment that counts, the head stays free for the decision itself, not for the question of how to decide.

The third pillar is cadence and ownership. A speech can no longer deliver it; a decision must. King’s speech was a single moment. What happened afterwards – the Civil Rights Act of 1964, the Voting Rights Act of 1965 – did not come from the applause at the Lincoln Memorial. It came from the organised continued work of the civil rights movement in the months after: from dates, owners and recurring meetings. Without a fixed rhythm and without a named owner, a decision fades after the approval meeting like applause. The Sparkline must keep oscillating beyond the meeting. That succeeds through a weekly Decision Board and a monthly review. Above all it succeeds through a person with a name: they explain the why again and again, especially when the new direction first hurts.

The second proof: Sinek uses the same pattern

Whoever looks for a second, independent proof of this pattern’s power finds it in a speech that has little in common with King’s pathos and still follows the same structure. Simon Sinek’s TED talk “How Great Leaders Inspire Action” is from September 2009, held in Puget Sound, and has since been one of the most-watched TED talks ever. He builds his entire argument on the same swing pattern as King’s speech.

Sinek begins with the as-is: most organisations communicate from the outside in, first the what, then the how. The why does not come at all or only last. Against that he sets the to-be, the “golden circle”: organisations that communicate from the inside out, first the why. Exactly this contrast – feature focus versus purpose focus – is the same opponent I name again and again in my own work, only on a different stage. Sinek then switches several times between as-is and to-be. In the as-is, companies fail because they start with the what. In the to-be, companies lead from their why. He sets the climax with the biological argument about the limbic system: People don’t buy what you do. They buy why you do it. This talk also does not end with a summary of the three circles but with the sharpening into a single sentence the audience takes away.

Two speeches, fifty years and a completely different register separate King and Sinek. The underlying architecture is the same Sparkline: contrast, repetition, a growing swing, a climax that forces action. This repetition across decades and registers shows something fundamental: Every message that is truly meant to change something needs this structure. That holds for two hundred thousand people before a memorial as much as for a six-person steering committee in the meeting room.

The question I ask myself today

When I build a talk or a decision brief today, I ask myself the same question I did not ask in my first years: Where is the next swing? Not: Have I named the numbers. Not: Have I described the vision. But: Have I just set both against each other so that the difference hurts and carries at once? And then the second question that has become even more important for me: Who keeps this movement going in the organisation when I have left the room?

A speech without this structure is often a report. A decision without this structure is often minutes. Both land in the archive. Both move nobody.

The fastest test: put your last decision brief next to this pattern and count the swings between as-is and to-be.

Which of your last decision briefs was a report, and which a Sparkline? Write to me at Adrian.Bourcevet@beyond-chaotic-analytics.ch – I gladly read your answers.