I chose to read this book after listening to Leo LaPorte and Steve Gibson gush over this book for months. I am very glad I did. It was so well done on so many levels. At first, it starts out as a modern spin on traditional Hard SF. But it is much more than that. The closest thing I can think to compare it to is Tad Williams' Otherland. I have already begun the sequel and can't wait to find out how the story ends.