I recently re-read Design of Everyday Things (I think written in the late 80s or early 90s) and noticed that despite all the criticism of interfaces, there was

I recently re-read Design of Everyday Things (I think written in the late 80s or early 90s) and noticed that despite all the criticism of interfaces, there was a default assumption that underneath the interface, if you used it correctly, everything works. I agree with the OP here; I think reliability has fallen off a cliff in recent times and LLMs with their lack of determinism is going to make this even worse unless we're careful.