The ecology of ideas of which this book is a part started to emerge in my head a long time ago. As time passed new ideas were added, some of which fl ourished, while others were unable to secure a spot in the evolving landscape. The particular combination of insights that forms the main argument of this book started taking shape after 27 November 2004. On that day our twin sons Daniel and Nestor were born. For quite some time after that I spent a lot of time holding one of them asleep in my arms. The only thing I could do in parallel was reading. So.