This is a tough book to review. For most of it, I felt that it had an interesting (if improbable) premise inexpertly executed. However, there was one scene toward the end that was so well-written and heartbreaking that it almost made up for the shaky writing and bad science in the rest of the book. The science issue is also mostly because there's a slight fantasy flavor that allows Shusterman to explore philosophical questions about the soul, but the science issues happen long enough before those questions even come up that I was already slightly turned off. 
 My library copy of the book included a sample of the next book, which was interesting enough that I'll probably keep reading despite my mixed feelings about this one.