In my opinion, this is Ishiguro‘s best book. I love it so much, and I wish more authors focused on a sort of abstract change in a futuristic, almost dystopian setting like this. What this book does, is shows us a very large issue through an equally small window. The answers come slowly, but in turn we are getting a lot more depth. This book isn‘t about the world building, nor the new societal changes, but about a very small part of all of it.