There's a bit of a tradition of introducing engineering ideas through stories. I remember a novella which was used to introduce something like MRP II (https://en.wikipedia.org/wiki/Material_requirements_planning) in the 80's. One of the reasons I think it works is that it keeps a focus on the human elements - like why Tom fitted the switch in your story. I remember automating a lab system back in 1985, which would bring in £1000 per day. Two weeks later I found out that the reason it wasn't in use was that the user wanted an amber monitor rather than a green one. I fitted the switch.

I don't know if this is what the future will look like, but this looks realistic. And if my non-existent grandson starts re-coding my business without asking, he's going to spend the next six months using K&R C.