> but they didn't even bother using water power to mill grain https://en.m.wikipedia.org/wiki/Barbegal_aqueduct_and_mills https://en.m.wikipedia.org/wiki/Barbe

> but they didn't even bother using water power to mill grain https://en.m.wikipedia.org/wiki/Barbegal_aqueduct_and_mills https://en.m.wikipedia.org/wiki/Barbegal_aqueduct_and_mills Slave labor may have caused a massive employment problem for the lower tiers of the non-slave population, but it sure did not cause Romans to skimp on water powered grain mills.