Why does a whole holiday feel like one moment?
· Source: Kahneman, Fredrickson, Schreiber & Redelmeier, Psychological Science, 1993
Back from ten days by the sea, you get asked by a colleague how it was. You open your mouth and out comes one evening: the terrace, the warm stone under your feet, the plate of grilled fish you still think about. Then, almost in the same breath, the delayed flight home and the queue at passport control.
Ten days, and you told the story in under a minute. The quiet mornings, the second beach, the afternoon you spent reading in the shade have all gone somewhere. They happened, you enjoyed them, and yet they hardly show up in the memory at all. It can feel a little unfair, as if the trip shrank while you weren’t looking.
The cold water experiment
In 1993, Kahneman, Fredrickson, Schreiber and Redelmeier ran a simple and slightly uncomfortable test. People put one hand in water at 14 °C for 60 seconds. That was the short trial.
In the long trial, they did exactly the same thing with the other hand: 60 seconds at 14 °C. Then they kept the hand in the water for another 30 seconds while the temperature was slowly raised to 15 °C. It was still painful, but for most people it was noticeably less so.
So the long trial contained all of the short one, plus extra time in cold water. Later, people chose which of the two they would rather repeat. A significant majority picked the long one. In plain terms, they chose more pain, because it ended more gently.
What memory seems to keep
The authors read this alongside other evidence. Their conclusion was that when people look back on an unpleasant experience, how long it lasted plays only a small part. What often dominates is how bad it was at the worst moment and how it felt at the very end.
That is worth slowing down on, because it goes against common sense. Common sense says thirty extra seconds of pain is worse than none. Memory disagreed. The gentler finish made the whole trial look better in hindsight, even though it added discomfort.
Pleasant moments too
Cold water is one thing. Does the same happen with nice experiences? In a related study from the same year, Fredrickson and Kahneman showed 32 people film clips, some unpleasant and some pleasant, of different lengths. People rated how they felt while watching, moment by moment, and then gave each clip an overall rating when it was over.
How long a clip ran made little difference to those overall ratings. The researchers called this duration neglect. They described the overall judgement as a weighted average of snapshots of the experience, as if the duration hardly counted.
This is where the holiday comes in, and here we’re going beyond what was tested. Nobody in these studies went on a trip. Still, a holiday is a long experience looked back on as a whole, which is exactly what these experiments measured. It’s a fair guess that the same pattern applies: a few bright snapshots and the ending stand in for the full ten days.
Outside the lab
The pattern also showed up in a hospital. Redelmeier and Kahneman recorded pain in real time while patients went through two medical procedures, a colonoscopy (154 patients) and a treatment that breaks up kidney stones (133 patients). Afterwards, patients rated the total pain they remembered.
Those ratings were strongly linked to the worst moment of pain and to the pain in the last few minutes. Long procedures weren’t remembered as especially bad. This was a correlation in real patients, not an experiment, but it points in the same direction as the cold water. The paper opens with a practical worry: memories like these may shape what people decide about future treatment.
Why this can be good news
Seen one way, duration neglect sounds like a flaw. Your memory throws away most of what happened. Seen another way, it gives you some say in how an experience will be remembered, even after most of it has passed.
What follows is advice, not a finding. If the end carries so much weight, the end is worth some care. A last evening of a trip that isn’t spent packing in a rush. A walk after a hard meeting so the day doesn’t stop at the meeting. A slow, kind ending to a visit from family, even if the middle had a few sharp moments.
How something ends shapes how you’ll remember all of it.
The same pull can be unfair, though. A lovely week with an awful last day can come back to you as an awful week. A long project that ended in a rushed mess can feel like a failure, even if most of it went well. Knowing about the pattern lets you notice it and ask a second question: what was the middle actually like?
One evening, as an example
Here is a made-up example. It’s Sunday night and Priya has just got home from a long weekend at a friend’s cottage. The drive back was slow, the car smelled of wet dog, and she is tired and a bit cross.
If someone asked right now, she’d say the weekend was fine. Instead she takes a few minutes to go back through it on purpose. Saturday morning, coffee on the steps while the mist lifted off the field. The long lunch where everyone laughed at the same old story. And the swim she almost skipped.
Then she says how it ended, plainly: a slow drive and a tired arrival. That’s true, and it doesn’t need hiding. But now it sits next to the mist and the lunch, instead of standing in for the whole weekend.
Next weekend she might choose the ending a little more on purpose. Leave an hour earlier, stop for dinner on the way, arrive home before she’s exhausted. That’s her own idea, not something the studies tested, but it follows from them.
When a memory needs more than this
Peak and ending are ordinary quirks of memory, and most of the time they’re harmless. Sometimes a single bad moment colours a whole stretch of life and keeps doing so for weeks. If one memory keeps returning, steals your sleep, or makes you avoid people and places, talk to a therapist. And if a hard memory of a medical procedure is keeping you away from a check-up you need, tell your doctor about it. They often have ways to make the next one easier, and saying it out loud is the first step.
Try it tonight
- Tonight, name the best moment of the day in one or two sentences.
- Then say how the day ended, plainly, even if the ending was small.
- Before your next trip or long day ends, plan the last hour so it’s a calm one.
Say the best moment and the ending of your day in Halflight. It keeps them under today’s date, along with the quiet middle your memory would drop.