Why Software Interfaces Should Adapt to Each User, Not Stay Fixed for All

A new perspective in software development challenges the long-standing assumption that a single interface should be served identically to every user. Most software today couples logic — what an interface does — with visuals — how it looks — into the same codebase, meaning design decisions made once apply to everyone regardless of context. This approach made sense when software was simple, but as products scaled to billions of users with vastly different needs, the limitation became more apparent. The argument is that interface logic, such as a checkout flow or search bar, is stable across users, while visual presentation should vary based on who is viewing it. Separating these two layers could allow interfaces to dynamically adapt their layout and emphasis for each individual, rather than reflecting a single designer's assumptions about an imagined user.