The ideation of features, their requirements, getting code for features written, testing the features, seeing how they fit in with the rest of the landscape, and maintaining those features. Same as before. Do those go away in your future? Even with the aid of AI agents, do you really think billions of people will want to go through that process every time they want a device to do something? Do you really think the younger generations who are being told AI will replace them will also embrace AI?
Similar to how even your hypothetical devices of the future still very much have an operating system (a kernel, libraries for software to interface with hardware, a standard suite of apps and tools, an environment for the user to kick things off)
> You might as well just say "I think you're overestimating the general public's interest in using computers"
I might, because I think the general public doesn't much like to "use the computer". It's what they need to use for work, or school, or how to listen to music or watch what they want to watch.
We're only just starting the general public's introduction to agentic AI with Siri and some Android devices. I'm betting there will eventually be some horror stories.