One underrated world-building element of Dune is the lack of computers and how things were developed to handle it. I don't remember if its addressed directly in

One underrated world-building element of Dune is the lack of computers and how things were developed to handle it. I don't remember if its addressed directly in the text, but the whole concept of mentats (they guys whose eyes roll back in their heads when they do math) was to compensate for this. Kind of a "post-Terminator world".