Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Boring, shallow and repetitive

This production seems to have been aimed at a 4th grade level. It belabors the obvious (guns were more deadly than spears) while leaving huge questions unaddressed (why didn't the Bantus, with their sophistocated, advanced society based upon advantageous geography, domesticated animals, crops, etc. create similarly deadly weapons and colonize Europe?)Instead, it repeats the same statements (I gave up counting the number of times Dr. Diamond said "As I wrote in my book Guns, Germs and Steel" or "It's a journey I began while in Papua New Guinea.") The recaps of narrative and visuals (I also gave up counting the pan shots of smallpox victims, or men carefully loading guns) starts to make one feel like we're in an endless loop.At best, there's an hour of material here. Does it do justice to Dr. Diamond's work? Sadly, I think it does, because if you've read the book, you'll know his theory is full of holes.