This was posted 4 hours ago and has 18 comments, including a link to a free version of the cited article. http://news.ycombinator.com/item?id=3222725 http://ne

This was posted 4 hours ago and has 18 comments, including a link to a free version of the cited article. http://news.ycombinator.com/item?id=3222725 http://news.ycombinator.com/item?id=3222725