just take the #Water #Mill. It was a thing of highly specialist practices all along, from #planning, #building, #maintaining, shrinking, expanding, connecting. There are water mills around, which are working with 300+ years parts, sometimes working with much older grinding gear.
having "#high #tech" and "specialised #practices" does not mean the same as need a colledge or higher degree to understand, build and maintain it.
#histtech #lowtech #hightech #history of #technology and #practices