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					Originally Posted by Hank Chinaski  100,000 years ago we needed to kill other tribes people. Coltrane argues that 3,000,000 years of waking upright isn't enough to fix our spines. How could so many fewer years create an aversion? | 
	
 I didn’t claim the aversion was genetic in origin. I dunno, ask a drill instructor whether it’s easy to get an average guy to kill the enemy. Back in the days of the draft, marksmanship training was a waste of time because 99% of rounds fired were unaimed cover fire.