I've just read this book (at least I think I've just read it -- the book I just read by David Gelernter was called "The Aesthetics of Computing" and was bought in the UK). I found the book a fascinating read. There is a lot of "energy" and there are many interesting ideas on every page. I think it has parallels with Christopher Alexander's work on patterns.I don't think the book deserves such strong negative comments given in other Customer Reviews. I think it is well worth the $$$!