" I loved this book but it took a while to develop the plot and characters. I loved this book but I have a hunch that not many people will agree with me. The reason I say this is that this book is dense with hard physics and leaps of non-intuitive logic. It can be hard to fully enjoy the book if one doesn't take the time necessary to think things through. Add to that characters that are mostly unsympathetic and a vague and probably relatively depressing ending, it is not a fun summer read. But if you do enjoy science and time travel paradoxes, and you do enjoy reading about people who are real in both their strengths and their failings, and you're willing to put the time and effort to immerse yourself in the language of the book, I think it's definitely worth your while. "
— Christina, 1/26/2014