In these time where we really need change and new ways to think about our economy this book gives a good framework to think about technology. Each region is it's own "valid" way of using technology I think it is a way to look at the priorities of the people in a geographic area (city state?) and how they want to interact with each other and the earth.
Super Tech, Limits Tech, Local Tech, Nature Tech and Human Tech. You can image how each one works. Listen to these podcasts to see if you are correct