I've been trying to finish this book over the last 6 weeks. I find it very boring, and complicated. Mr. Diamond keep repeating the same thing over and over, again and again. He also keeps referring to "we covered this in an earlier chapter, or we will cover this in a future chapter, which I find extremely annoying. Much of his facts come from observation, which is dubious or bias. With 100 pages to go I hope I can finish it by tomorrow. I know many people loved this book, and some recommended it to me, but in the nine years, after it had been written, it is dated already.