Hi there, I have recently made the decision to write a sci-fi story and started by creating the world first, in which several stories can take place. Now I have my protagonists chosen and plot finished to about half. I have not yet started writing anything, as I am just building the outline in my head. As I have never attempted to write a novel, or such a long story, I started doing some research and I am not sure how I would implement the world description. It's about a two-class society if humanity evolved a certain way, about 1000 years into the future and there is a twist in the story that's supposed to come more towards the end in which the background information of this society really becomes relevant. I have read a lot that the story should be focused on the character and only as much should be told, as is relevant for the story of that character. Now I wonder how I would cram the world background information, maybe even history up to that point into the story, in a relevant way, without using exposition, or would it b ok to use exposition for the world? What are your thoughts on that?