So I can't talk too much about what's IN the book yet, because that's how publishing works, but like... there is now every single day an article that is basically wrong, or treating a question as mysterious when there are actual answers, about space settlement. Please consider reading if these things interest you: https://www.penguinrandomhouse.com/books/639449/a-city-on-mars-by-kelly-and-zach-weinersmith/