The Seatbelt nobody notices

In 1968, the United States government made seatbelts mandatory in all new passenger vehicles. Adoption was slow. Wearing a seatbelt felt optional to most drivers for another decade. But by the early 1990s, the cultural shift was essentially complete. Seatbelts became automatic. Invisible. An assumption so foundational that a car without them would be unthinkable.

And nobody buys a car because it has seatbelts.

Not one automotive marketing campaign has ever led with seatbelt availability. No consumer rates a car highly because the seatbelt mechanism was particularly smooth. The feature is there. It is required. It is noticed only when it is missing or when it fails. It has become, in the language of product development, table stakes.

This is where UX has arrived. And the profession has not fully worked out what to do about it.

The argument that has been circulating with increasing seriousness this year is that the return on investment in UX has declined. Not because good UX stopped mattering, but because the baseline has risen so steeply that the marginal value of additional investment is harder to demonstrate. Users no longer reward usability with loyalty the way they once did. They punish poor usability with abandonment, but they do not celebrate excellent usability as exceptional. It has become expected.

Jakob Nielsen made a version of this argument recently and it generated the predictable reaction: one camp treating it as evidence that UX was always overrated, another defending the discipline as if the argument itself were an attack.

Both reactions missed the point.

The argument is not that usability doesn't matter. It is that usability has become a threshold rather than a differentiator. You need to clear it to be in the game. But clearing it no longer wins the game.

I remember when this felt different. Early in my career, designing a product that was genuinely easier to use than its competitors was a commercial argument in itself. You could point to the onboarding flow, show the drop-off comparison, and make the case that design was directly moving the number. The competition was often so poor that good design stood out by default.

That gap has closed. Not everywhere and not completely, but enough that the old argument has lost its automatic credibility. The product category I spent two years working in at a SaaS company had, by the time I left, four direct competitors with user research programmes, design systems, and UX teams that were doing serious, careful work. The baseline experience across all five products was genuinely comparable.

In that environment, usability is no longer the differentiator. Something else has to be.

But this is not a crisis. It is a maturity signal. And the way a discipline responds to maturity reveals something important about whether it has built its identity on craft or on novelty.

Medicine has always had table-stakes expectations. A doctor who correctly diagnoses a straightforward illness is not celebrated for exceptional skill. But medicine did not conclude that diagnosis no longer matters. It concluded that the differentiation now lives in the harder cases, the novel presentations, the problems that require judgment rather than pattern matching.

UX is moving into exactly that territory. The straightforward cases, the standard flows, the conventional navigation patterns, these are increasingly handled by mature patterns, design systems, and now AI-assisted generation. The differentiation lives elsewhere.

It lives in the edge case that the pattern cannot handle. In the user population whose mental model doesn't match the assumption baked into the template. In the product category that is genuinely new and has no established convention to follow. In the moment when doing the expected thing would be technically correct but wrong for this specific user in this specific context.

That is not less important work than what came before. But it is different work. And it requires designers who have built their professional identity on judgment rather than on being the person in the room who knows what good usability looks like.

The seatbelt is not a failure of automotive safety. It is proof that safety worked well enough to become invisible. That is not a diminishment. That is the goal of any well-designed system.

The question for UX is what happens next, now that the seatbelt is fitted and nobody is talking about it.

The answer is not to make the seatbelt fancier. It is to find the next problem that hasn't been solved yet.

Those problems exist. But finding them requires looking past the table stakes toward the territory where the baseline has not yet arrived.