Customers remember two moments, not the whole journey

Customers do not score a brand step by step. Memory does not work like a spreadsheet. After an experience, people recall two points: the moment of highest emotion and the emotion at the end. The rest, even though it takes up most of the time, fades very quickly. This is not a casual observation. It is a research result from Daniel Kahneman, the psychologist who won the Nobel Prize in Economics in 2002.

Which research supports this

In 1993, Kahneman and Tversky published a study on how people look back on emotional experiences. The results showed that participants rated how unpleasant the whole experience was based on two points: the highest emotion during it and the emotion at the final stage. Whether the experience lasted long or short had almost no effect on the overall rating. They called this phenomenon “duration neglect”, meaning that memory ignores length.

In 1996, Redelmeier and Kahneman brought this finding into a real medical setting. Colonoscopy patients had their pain levels tracked in real time. When asked afterward, their memory of the pain did not match the actual data. Instead, they remembered the average of two points: the highest peak of pain and the pain level at the end of the procedure. This is the clearest empirical evidence for the peak-end rule.

The experience as it happens and the memory of that experience are two different things. We live through experience, but we choose through memory.

Daniel Kahneman, Thinking, Fast and Slow, 2011

For a brand, this means: how customers remember the brand is not an even sum of every encounter. It is shaped mainly by a few particular moments.

How a brand journey is scored

A customer's journey with a brand usually has five to eight steps, from first hearing the name to after the purchase is complete. Each step is a touchpoint: the website, the packaging, the order confirmation email, the unboxing, after-sales service. Most brands spread their design budget fairly evenly across these steps, or concentrate on whichever step involves the most work rather than the step that matters most to the customer's memory.

The peak-end rule shows that this allocation is in the wrong place. The question to ask is not “which step are we working on the most?” but “which step creates the highest emotion, and which step is the ending?”

Where the peak usually sits

The peak point is not the same in every industry. But there is a general principle: the peak usually sits at the first moment a customer sees the brand while they have a real need. That is when emotion is high, attention is high, and a decision is easiest to shape.

For consumer products, the peak is often the packaging on the shelf or the product image on the sales page. For professional services, the peak is often the first meeting or the moment of receiving the result. For a restaurant brand, the peak may be the first look at the space or the first time opening the menu. What they share: this is when the customer is full of anticipation and does not yet know what they will get.

Research by Lindgaard and colleagues shows that visual impressions form within 50 milliseconds. This means the design quality at the peak is not a decorative detail. It is the first signal telling the customer whether this brand can be trusted.

The ending is often forgotten

The peak is often invested in because it is easy to see, while the end is often overlooked because it happens after the customer has paid. This is a costly mistake.

The end point in a purchase journey can be the order confirmation email, the thank-you card in the box, the usage guide, or a message after the service. For most brands, these are made quickly from a generic template, with no design investment. Yet this is exactly the last point memory records before the transaction closes.

A box that opens beautifully, a small handwritten thank-you note, a post-service email written in the brand's voice. These things do not cost much, but they sit exactly where memory holds on.

How to use this rule to allocate investment

The first step is to map the full journey. List every touchpoint, from the first time a customer hears the brand name to after the transaction is complete. Leave none out, including small ones like the thank-you page after a form is filled in.

The second step is to mark two points using the peak-end rule. Ask: at which step is the customer feeling the strongest emotion? And which step is the last time they touch the brand in this transaction cycle? Those two steps need the most deliberate design.

The third step is to review your current design budget. If the two most important points are handled carelessly while the middle of the journey gets more investment, that is a sign the priorities need to be reordered.

• Peak: usually the first time the brand is seen while the customer has a need. It calls for the highest design investment in attention and emotion.
• End: usually the moment after the transaction. It should be designed in the right voice and leave a positive feeling, not be handled just to get it done.
• The middle: it needs to be good enough not to create a negative peak, but it does not have to be equally refined throughout.

What this rule does not say

The peak-end rule is not a license to be careless in the middle of the journey. A bad experience at any step still creates a peak, just a negative one. And a negative peak is remembered by the same rule.

The right application is to adjust the level of investment according to emotional impact, not to cut anything out. Most points in the middle of the journey need to be consistent and professional enough not to drag the experience down. The peak and the end need to be deliberately raised above that level.

This is also why the rule is closely tied to the principle of consistency. Consistency keeps the points in between from drifting too far, so that a well-designed peak and end are not eroded by poor-quality contact in the middle. A brand that accumulates value over time does both: it is consistent across the whole journey and sharp at the two points memory records.