Like most of us living in the West I have have pondered this question from time to time. Why did the west come out in front, and will it last? Should we all start learning Chinese? And was it inevitable - were Westerners more open-minded, or harder working, or were we just super-lucky to have had the industrial revolution? Or was it simply the work of exceptional people such as Julius Caesar, James Watt or Columbus? Morris looks at this from a different angle. He uses an index of social development to analyse how societies have risen and fallen (including energy capture, organisation/urbanisation, war-making and information technology). But most importantly he tells a brilliant story of global history. It's a big book, but it has to be, to cover its full scope. Part history, part archaeology, part geography, part biology and part sociology it is the work of a real polymath. It's incredibly readable too, beginning with a terrific fantasy of how things might have been. I didn't agree with all of it but it's still the best history book I've read this year. You may guess that I felt stongly about this book.