If you are even slightly interested in quantum physics, crazy theories on other dimensions or just a science fiction fan in general, you will love this book! On a scale from 1-10, I'm like a level 8 nerd, and do things like study quantum physics for fun in my spare time. This book was such a satisfying example of the complexities involved in these kind of theories. I loved that a lot of the book cited real science, real studies, real theories. It was well researched, and even though it's fiction, a lot of the science isn't. I really enjoyed it! There's even a love story! What can be better than that, science and romance? Not much in this girl's opinion.