It looks like that book is from 2006, predating widespread recognition of Göbekli Tepe's significance. At the time, from my recollection, the mainstream view as that human culture at 10k BPE was nowhere near being able to produce the kind of social organisation that a complex like Göbekli Tepe would require. Was the book ahead of its time in recognising the potential for something like Göbekli Tepe? Or does it need a new edition, in light of what's been discovered?