While I am glad to have read this book, it's not one I'd have missed reading. I'm not sure quite why I feel that way about it. It had a great deal of astonishing and logical detail of technology of the future (from 'mining' hydrogen gas from the atmosphere of Titan to sensor arrays to search for extraterrestrial life) and I do like exploring those ideas and theories, and yes, the sci-fi dreams of the author. I guess it was something to do with the story line that didn't enthrall me, I just didn't feel empathetic with the characters to make my interest in them any more than to make them comments in passing between the technology. One thing I did like was the ending. I wont say what I liked about the ending as that would spoil the story if ever you get to read it, but it came with an unexpected twist and a flurry of 'new' technology ideas.