It will, to be clear, be a transition: UI isn’t just about how to use a computer, it also, as Benedict Evans noted on a recent Interview, embeds critical aspects of how a business works. Open-ended text prompts in particular are a terrible replacement for a well-considered UI button that both prompts the right action and ensures the right thing happens. That’s why it’s the agent space that will be the one to watch: what workflows will transition from UI to AI, and thus from a thick client architecture to a thin one? Current workflows are TBD; future workflows seem inevitable.