Interesting read. Though my comment is on a benign technical detail. There were links in the article to other articles that I expected to work given how recently the article was published. For example, I was interested in reading about the 40k year old flutes - <a href="http:&#x2F;&#x2F;www.nytimes.com&#x2F;2012&#x2F;05&#x2F;29&#x2F;science&#x2F;oldest-%20musical-instruments-are-even-older-than-first-thought.html" rel="nofollow">http:&#x2F;&#x2F;www.nytimes.com&#x2F;2012&#x2F;05&#x2F;29&#x2F;science&#x2F;oldest-%20musical-...</a> Curious that the link would appear at all. I&#x27;d think there would be constraints on this during publication?