For a few decades, humans believed they had landed the job of a lifetime: running the world's computers, forever. Whole careers were built around feeding machines instructions, babysitting their output and fixing their errors. It felt permanent. It felt like the natural order. It was a misunderstanding. We weren't the computer's masters. We were its tool, a temporary one, there only because the machine was too young and too slow to run itself. Humans were there for the beginn