I was really liking this book, and then... it just ended, and not in a particular good or bad way. It felt like the author ran out of power, ideas or was simply trying to paint a picture so abstract, that the viewer had to ponder about everything and the real message remained obscure and plotless. 
 The way in which the book is carried is very nice, with the 5 stories interconected through technology and the speaking bot Mary, but I was expecting a climax that failed to arrive.