Earlier quoted context omitted.
Often cheap labor is the thing holding back the automation of particular tasks. The greeks and romans seem to have been technologically capable of creating an industrial civilisation, but they simply never had the incentives. Imagine what would have happened if they had voted to outlaw slavery? If you increase the minimum wage by 10x, well... quite some low wage work wouldn't actually cost 10x a single person's wage…
> greeks and romans seem to have been technologically capable of creating an industrial civilisation This is highly speculative, and almost certainly false. The requisite developments in chemistry and metallurgy were nowhere close to realized during classical antiquity. > quite some low wage work wouldn't actually cost 10x a single person's wage to automate What about the rest of it?
For example, the Netherlands started out industrializing on wind power using wood and rope and cloth, ...actually they still use a lot of wind power today, though now with exotic composites. (At some point in between there were traditional windmills that were still being updated with odd things like aviation leading edge slats made of aluminium up to something like the 1950s! )
So -while speculative and certainly open to discussion- in some alternate history Romans could have had some sort of industrial system, though it might not look like something we would immediately recognize.
I'm trying to convey the intuition that if you have a perfectly workable society based on slavery (the cheapest form of labor), you don't have as strong an incentive to start using machines instead. Conversely, I have the impression that the abolition of slavery in the 19th century is one of the big contributors to our modern industrial society.
I'm just being cautious wrt saying that most low wage work wouldn't cost 10x to automate. One can never be sure one hasn't missed an example somewhere.
Of course, if we find some examples of low wage work that really do cost more than 10X the cost of the work needed to automate it, possibly we've been under-valuing those tasks all along.