Agriculture the worst mistake ever and why you should eat dirt

I have so far read two chapters of Jared Diamond's Guns, Germs and Steel and highly recommend them (I anticipate the rest of the book will also be worth reading). Diamond puts an interesting perspective on human history. Here's a sample of some of his other ideas:

• Why eating dirt might be good for you
• The evil that is agriculture
• The human appetite for mass extermination