Nothing has yet been completely automated: look down the supply chain behind any machine and labour is still adding a great deal of the value.

there's a sense in which nothing's yet been completely automated. If you look at the network-adjusted factor shares of a good, which is to say you look down the supply chain and say not just like the final step, but how much of that is done by capital and labor, but what went into the machines that can automate that final step. You'll find that labor's adding a lot of value down the supply chain.