I finished rereading the second book last night and this time - because the world wasn't new to me anymore - I had time to really think about the concept. Diversity and the reaction to it is a big theme of the whole series. But unlike real life it turns everything upside down and changes things we are used to giving people who never knew what it felt like to be discriminated the chance to experience it and learn from it. It's fascinating because I didn't even conciousky think about it while reading it the first time! The story is so exciting and really needs to think to follow everything so your mind us really busy at first 😁 I love this series!