This was a great deep book about a ;lunar colony but really about reimagining society to see what different types and groupings of people might exist if you got to start sort of from scratch. This book takes place on the moon. There are lunar colonies and they are very different. Some of them seem like Earth II and some of them are entirely different, with women in charge, men in subservient roles and a whole bunch of different ways of doing things. There are inevitable conflicts. This book is a fascinating thought experiment into how some of those types of conflicts get resolved. One of those books where I finish reading it and then want to go read about the book to learn more about the topics in it in depth.