I liked this book and I really enjoyed "Guns Germs and Steel" so I really hoped for "Collapse" to be another new intriguing work that would challenge people to think in a new way about existing problems. This book is just so long though. Clearly it is well-researched and Diamond knows what he is talking about, but I kept waiting for the grand enlightenment. Perhaps this book is just different. Clearly, though, this is a topic well worth reading about, and Diamond has established himself as an expert.