Previous discussion at http://news.ycombinator.com/item?id=223977 http://news.ycombinator.com/item?id=223977 http://news.ycombinator.com/item?id=830522 http:/

Previous discussion at http://news.ycombinator.com/item?id=223977 http://news.ycombinator.com/item?id=223977 http://news.ycombinator.com/item?id=830522 http://news.ycombinator.com/item?id=830522