cradle to cradle

I thought that what the authors of the book brought up were awesome ideas. It's really a good idea to make stuff that goes back to nature or make garden cities or whatever else they were saying. Be one with nature: work with it as opposed to working against it. However, they might be a bit optimistic about this. Can the technology we have actually do all of this? Wouldn't this be really expensive since they'll have to change everything? Can the developing world afford to do all this? I want this movement to succeed though, so hopefully technology is actually affordable enough for everyone to implement.
Also, I thought this book was definitely cool (albeit a bit heavy and expensive and weird-smelling), imagine if all books were like this. You could read them on the beach without worrying about them getting wet or while lounging in a pool. Plus they'd be immune to water damage. Once, I had a textbook that got wet in the rain, and when I tried selling it back, they wouldn't take it because of water damage. That was 120 dollars down the drain, which would have been