This was conceptually compelling but narratively a little bit dragging. Still, this is probably one of the most unique and solid science fiction books I've ever had the pleasure of reading. I wasn't really drawn in by the scientific elements as much as I was by the philosophical implications of the story and social commentary interwoven throughout. In terms of characters, while interesting at first, I found them to be written a bit unimaginatively that it almost undermined the gravity of their actions. In fact, my unpopular opinion is that the Netflix adaptation's approach serves the story better in order to make them feel more grounded. However, I'd still recommend this to anyone who is looking for distinctive approach to first contact.