> The implicit assumption you are making is that the demand increases in lock step with productivity gains. This is basically the theory around modern industri

> The implicit assumption you are making is that the demand increases in lock step with productivity gains. This is basically the theory around modern industrial revolution - https://en.wikipedia.org/wiki/Jevons_paradox https://en.wikipedia.org/wiki/Jevons_paradox Efficiency increases demand more than the efficiency saves. You could argue that labour does not follow that, but it is more about the technology improving rather than disrupting.