Ten days of holiday. Nine of them are fine. Good weather, a decent hotel, nice meals. On day ten you lose your passport at the airport. Six hours with customer service, a missed flight, a new ticket, home twelve hours late.
How do you remember the trip? “Disaster. Never going back.”
Same nine days, different day ten: a sunset dinner, a free upgrade, a smooth flight home. “One of the best trips we’ve ever had.”
Same holiday. Different ending. Completely different memory.
Your brain is not a camera
In the early 1990s, Daniel Kahneman asked people to put a hand in very cold water. In one trial they kept it there for sixty seconds at 14°C, then stopped. In the other, they did the same sixty seconds, then kept their hand in for thirty more seconds while the water warmed by a single degree. Still cold. Still unpleasant. Just slightly less awful.
Then he asked which trial they would rather repeat. Most people chose the longer one. More total pain, better ending.
He later ran the same idea in real medicine with the physician Donald Redelmeier. Some patients had a standard colonoscopy. Others had the same procedure plus one extra minute at the end, with the instrument left still: uncomfortable, but less so than before. The patients with the longer procedure rated it as less painful overall and were more willing to come back.
Kahneman called it the peak-end rule. We judge an experience by its most intense moment and by how it ends. The middle, where most of the time was actually spent, barely registers.
Why airports ruin themselves
Smooth check-in. Fast security. On-time departure. Perfect landing. Then forty minutes at baggage claim, a bag that arrives damaged, and nobody around to help.
“The flight was a disaster.”
The flight wasn’t a disaster. The ending was. But the ending is what got remembered, so that became the story you tell your friends.
Where businesses lose it
Most companies pour their effort into the middle: the product, the features, the long hours of good service. Then the experience ends with an invoice, a hold queue, or an automated email that opens with “Thank you for your interest.”
A project that went well for six months and ended with an argument about the final invoice will be remembered as the project with the invoice argument.
An apology doesn’t rescue it either. “Sorry for the inconvenience” with no fix, no timeline and no name attached makes the ending worse, not better.
Try this before Friday
Pick one experience your customers go through: onboarding, a delivery, the last meeting of a project, the final call on a support ticket. Find its last minute.
Then design that minute on purpose. A clear summary of what changed for them. A small, unexpected extra. A real person’s name and a real next step instead of a ticket number.
It costs almost nothing. And it writes the whole story.