"Once men turned their thinking over to machines in the hope that this would set them free. But that only permitted other men with machines to enslave them."
This quote from the Reverend Mother in the very first scene is... prescient.
And it's interesting as a re-read because I didn't remember the general backstory to the oddly low-tech elements of Dune being explicit. I guess when I read it the first time they weren't the parts that made an impression. Not sure how much that reflects how young I was or how long ago it was in terms of tech progression.