The book is out
Update. In response to Phobos' comment, please be assured that the book is intended for the general reader - there are no equations, and a background in mathematical finance is definitely not assumed.
This is a blog about interacting systems and how they behave: systems thinking construed broadly. Financial markets and economics; politics; and occasionally physical systems are discussed, with an attempt at focusing on how the rules of the game determine the strategies of participants and the possible outcomes.