I also really enjoyed When God Talks Back. I had a review copy around the same time as I was reading Thinking Fast and Slow and did two posts on Luhrmann's book that may be of interest to LWers or, at least, give you a better idea of whether you'd be interested in the book: “What’s Hard is Simple, What’s Natural Comes Hard” and "Quasi-Transhumanist Charismatic Christians"