I stopped when reading chapter 9 and I have no idea what happened. Even though I have no doubts this is an amazing book (hence the *** star rating) I just couldn't get through it. The hard science was too... sciency. I was buddy reading this with a friend and she was able to interpret the texts I was struggling to understand, even after reading them for about nine times. Due to the struggle to understand everything, I was unable to build a relationship with the characters and the built environment.