The new book is a history of the last 200 years from a demographic perspective. It looks at what are the big trends going on in the world, and how are they shaping the future? And i do that in ten numbers. I start off by talking about peru as an example of massively falling inf mortality rates,. Then once you've got low, low fertility, er, you then start to get an aging population., rising life expectancy. In catalonia it's why we didn't get a civil war when they had a referendum and voted for independence - because people were too busy sipping their coffees  in the cella. Eradicating poverty through education has made this