I really enjoyed this book, even thought I think it's more interesting as a collection of ideas than as a novel. The characters in the first third felt somewhat flat, and the dialog is often delivered in hefty paragraphs with minimal dialog tags. But the story picks up in the second half and by the end I was reading it daily in big chunks. The concepts this book explores are what really shine, especially the idea of walking away from capitalist society and living in self-sustaining communities without formal governments or laws. This novel contains some future technology which we don't currently have today including 3D printers which can print food, clothing, and building pieces for vehicles and housing and also internet interfaces implanted into people's bodies which allow them global network access from anywhere almost all the time. The nation state of Canada also seems to have fallen before the start of this novel, as most of the characters end up walking away from the US into northern Canada to find these alternate communities. I liked seeing Doctorow play out the clash between on faction wanting to run a group house as a meritocracy versus another group committed to allowing all members to work as much or little as they want to or can, for example. The book does not shy away from showing the violent crack down of the existing governments on these alternate communities. There are major character deaths. But the other big theme of the book is exploring the digital scanning and uploading of human consciousnesses to the web allowed people to walk away from death.