Reading the 3rd book of The Expanse atm, and something just jumped out at me: there are basically no robots in the books. Or like, even mechanisd automation in general. You get the occasional person sitting into a mech, but actual machines, or even something already as ubiquitous as drones, are absent. I haven't looked into it in case I hit spoilers, but it must be a deliberate authorial choice. Still, it already seems anachronistic in a world of automated rocket flights.