People don't remember your whole presentation. The Peak-End Rule tells us they remember two things: the most emotionally intense moment and how it ended. If your ending trails off into "I think that's about everything," that's the memory you're leaving them with. Writing the ending first changes everything about how you structure a talk.
I was in the audience for one of the best presentations I'd ever seen. Confident speaker, sharp content, a story in the middle that had 200 people leaning forward at once. The room was with her completely.
Then she finished her last slide, glanced at the back of the room, and said: "I think that's about everything. Any questions?"
Two hundred people deflated in real time. The energy drained out of the room like someone had pulled a plug. People started checking their phones before the applause even started.
I've thought about that moment a lot. A presentation that had been excellent ended on six words that undid most of it. And the uncomfortable truth is: I've done the same thing. More times than I'd like to admit.
Why the ending matters more than you think
The reason that ending stung so much isn't just aesthetics. There's a psychological principle at work called the Peak-End Rule, and once you understand it, you can't watch a presentation the same way again.
The research, which I first encountered properly in Compelling Communication, shows that people don't form memories of experiences as a whole. They don't average them out. Instead, they remember two specific moments: the peak (the most emotionally intense point, positive or negative) and the end. The middle sections, the data slides, the transition phrases. Those largely dissolve.
This has been tested across medical procedures, holidays, even the way people rate films. The last few minutes carry disproportionate weight. An experience that ends badly is remembered as worse than it was. One that ends with intention is remembered as better.
People don't average out a presentation. They remember the peak and the end. If your ending is weak, that's the version they take away.
For presenters, this is both alarming and clarifying. Your audience will leave with a memory built from two data points. You control both of them, if you plan for it.
The ending speakers write last (and why that's the problem)
Ask most people how they structure a presentation and they'll tell you the same thing. Start with the hook, build the argument, finish with the conclusion. The ending is what's left once the content is done. It's the last thing written and the least thought-about part of the whole thing.
Build all your content first, then wrap it up at the end with whatever's left
Write the ending first: the final image, sentence, or question you want to land. Then build everything toward it.
The result of treating the ending as an afterthought is predictable. Speakers run out of steam. They recite a summary of what they've already said. They trail off with something apologetic: "I think that covers it," or "there's probably a lot more I could say but we're running short on time," or the absolute worst: "so, yeah."
These aren't just weak. They actively damage the memory your audience forms of the whole talk.
What an emphatic ending actually sounds like
I started writing my endings first about a year ago. It changed the shape of every presentation I've given since.
An emphatic ending isn't a summary. It doesn't rehearse everything you've covered. It lands the emotional note you want your audience to leave with. It answers the unspoken question every audience has at the end of any talk: so what do I do with this?
So that's the three key takeaways. Thanks so much for listening, any questions?
One thing. If nothing else sticks from today, remember this: [single clear idea]. Everything else follows from that.
The best endings I've seen and delivered have a few things in common. They're short. They use a callback to something from the opening. They end on a statement, not a question. And they stop when they're done. They don't hang around explaining themselves.
The best endings stop when they're done. They don't explain themselves. The last sentence is the last sentence.
The callback deserves deliberate attention. If your presentation opened with a story, a question, or a provocation, the ending is where you return to it. You close the loop. Audiences find this satisfying in a way that's almost physical. The tension from the opening resolves. That resolution becomes part of the memory.
Building the peak on purpose
The Peak-End Rule covers two moments, and both deserve deliberate thought. Most speakers do have a natural peak, a slide they're proud of, a story that lands, but they don't always place it deliberately.
In Compelling Communication, the framing around emphatic structure isn't just about endings. It's about understanding that attention isn't uniform across a presentation. People pay more attention at the start, drift in the middle, and snap back near the end. The middle of your talk is the most forgettable part. If you bury your most important idea there, most of your audience will miss it.
Your peak moment should come either in the first third (where attention is highest) or in the final section (where you want it fused with the ending). The middle is where you put the supporting material: the evidence, the context, the examples that justify the main point.
When I restructured a keynote I'd been giving for about six months using this logic, the audience response changed noticeably. Same content, different shape. The main story moved from the middle to just before the close. The closing line became the line the main story had been building toward. People stopped me afterwards to quote the ending back at me. They'd never done that before.
The six words that kill a room
I want to come back to "I think that's about everything," because it does more damage than most speakers realise.
It signals doubt. "I think" tells your audience you're not sure. It signals incompleteness. "About" suggests there might be more but you've given up. And it signals a lack of preparation. The ending caught you by surprise, even though you built the whole presentation.
The fix isn't to replace those six words with something more confident-sounding. The fix is to have written a real ending so you never reach for a filler phrase. When you know exactly what your last sentence is, when you've rehearsed it, when you know how it lands, you don't need to improvise your way out of the room.
Write the ending. Write it before you write anything else. Then build everything toward it.
The last 30 seconds are the ones they'll remember. Make them the ones you meant to say.
