— Blog · Culture —
Nostalgia used to be a medical diagnosis. In the 1600s, Swiss doctors used the term for a sickness that afflicted soldiers stationed far from home — a longing so intense it produced fevers, lethargy, and (occasionally) death. For most of the next three centuries, nostalgia was considered a defect. Something to be cured.
By the 1970s, psychologists had reclassified it. Nostalgia, they found, was actually beneficial. People who indulged in it showed improved mood, stronger social connections, and a clearer sense of identity. Today, nostalgia is increasingly viewed as one of the most powerful tools in the cognitive toolkit — and product designers have noticed.
Research from Sedikides and Wildschut at the University of Southampton — who've spent two decades studying nostalgia academically — has shown a consistent pattern. When people experience nostalgia, several things happen:
That last point is the most surprising. We usually think of nostalgia as backward-looking, but the data shows the opposite: people who feel nostalgic tend to be more energized about their future. Memory of a meaningful past appears to reinforce the sense that meaningful experiences are still possible.
If you're building an app, the question is: what makes someone choose your product over the dozens of identical alternatives? Functionality is rarely enough — most app categories are saturated with competing functional solutions. What differentiates is feeling. And nostalgia is one of the most reliable ways to manufacture feeling on demand.
When an app uses retro design — a typewriter font, a cassette-tape icon, a Polaroid frame — it doesn't just look pretty. It triggers a small, predictable cognitive response in the user: a fleeting sense of past meaningfulness, attached now to your product. The app borrows emotional capital from things that earned it decades ago.
The Notes app on iPhone, for years, used a yellow legal-pad background. Garageband used wooden interiors. The original iBooks used a wooden shelf. These weren't decorative choices — they were emotional shortcuts. They said: this app is like that thing you already loved.
Here's where it gets interesting. The most popular retro-aesthetic apps today often invoke eras the users never personally experienced. Twenty-year-olds nostalgic for 1980s tech. Teenagers nostalgic for 90s VHS quality. People who never owned a Polaroid camera using Instax-style apps.
The journalist John Koenig coined the term "anemoia" for this — nostalgia for a time you've never known. It's a real, common, and structurally similar experience to ordinary nostalgia. The era doesn't have to be yours. It just has to be coherent, distinct, and slightly out of reach.
This is why retro design works across age groups. A 50-year-old using Roll Booth might feel a warmth that comes from actual childhood memories of photobooths. A 20-year-old might feel a different warmth — for a world they've only seen in movies but recognize as the era they wish they'd lived in. Both experiences are emotionally real.
Nostalgia is powerful but also easily abused. Slapping a Polaroid frame on a generic photo app isn't enough to create real feeling — users can tell when retro design is decorative versus structural. The apps that succeed treat retro as a coherent system: aesthetic, interaction, language, sound design, all aligned.
Roll Booth is built around this principle. The dashed borders, the sprocket holes, the thermal-print contrast, the mono typography — none of these are individually doing the work. It's their alignment that creates the feeling. Removing any one of them would weaken the others.
As AI tools make it cheaper to produce any visual style at scale, generic retro aesthetics will lose their distinctiveness. The next phase of nostalgic design will likely be more specific — particular regional aesthetics, particular subcultural visual references, particular short windows of design history (the late 1990s newspaper insert; the 1981 video game cabinet) rather than broad eras. The more specific the reference, the harder it is to fake — and the stronger the emotional reaction when it lands.
Nostalgia isn't about the past. It's about being reminded that the past mattered.