Most people in the Dune universe are literally vassals of feudal lords. By removing advanced machines, they instead have warped, specialised human beings in th

Most people in the Dune universe are literally vassals of feudal lords. By removing advanced machines, they instead have warped, specialised human beings in the machine's functions: mentats, suk doctors, navigators, etc. They are servants, human cogs in the system. It's dystopian.