alt Hacker NewsAgricultural jobs accounted for more than 80% of the preindustrial workforce. Granted you still needed people to maintain the jobs and some roles weren't entirely replaced or replaceable. I wonder how the two compare. I will say that AI has the opportunity to affect many lines of work which makes it scary for many.
80% was peak agriculture, but involvement was already in decline before the tractor. Necessarily so — nobody would have had time to create the tractor if they were still busy toiling in the field. The tractor was the final death knell, I suppose, but only around 40% of the workforce was involved in agriculture by the time the tractor started showing up on farms.