3.3M year old stone tools found!http://www.nature.com/news/oldest-stone-tools-raise-questions-about-their-creators-1.17369 …
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Replying to @robinhanson
@robinhanson Sort of raises questions about fitness of intelligence - it takes *3 million years* to go from stone tools to agriculture?3 replies 0 retweets 1 like
Replying to @gwern
@gwern @robinhanson Points to intelligence being more useful for intra-group competition than ecological dominance
12:43 PM - 22 Apr 2015
0 replies
0 retweets
1 like
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