This is at least the third time this article has been posted. See http://news.ycombinator.com/item?id=664635 http://news.ycombinator.com/item?id=664635 and http

This is at least the third time this article has been posted. See http://news.ycombinator.com/item?id=664635 http://news.ycombinator.com/item?id=664635 and http://news.ycombinator.com/item?id=656979 http://news.ycombinator.com/item?id=656979.