the nature of order book 2

i visited patternlanguage.com for the first time in a while and there are some new bits. the best i found was an introduction to the nature of order book 2 written by christopher alexander for amazon and i thought it would be of interest to our little community as it explains why his work has its professional enemies and better yet is a 24 page pdf file written for the benefit of the scientists amongst us which introduces concepts in complexity theory that form the basis of the new paradigm in architecture
and if you have any more time to waste surfing there's always other people's ltu1 essays to read