First two thirds are engaging, though he over simplifies rather too much to fit everything neatly into the either-or, but I learnt of much I did not know. Despite his efforts over preceding pages to remain neutral, the later parts become infuriating. He can't help guiding you to Borlaugianism (wizard's tech as adversary to nature) as the preferred correct solution. I felt rather let down in the end and wonder about how balanced the preceding actually was.