I'm a nerd
I just started reading my copy of A Brief History of Time
I read that last year before Season 5. It's pretty cool, and though the time travel on Lost doesn't quite fit, there is some stuff in there that helps it make some sense. At the very least, it makes you believe that time travel is possible!
What's funny, though, is that book is written for non-academics, and it was still way over my head in a lot of ways. It's a quick read, though, which is why I was able to pull it off.