Here are some previous submissions of this item: http://news.ycombinator.com/item?id=1951274 http://news.ycombinator.com/item?id=1951274 : a few comments http

Here are some previous submissions of this item: http://news.ycombinator.com/item?id=1951274 http://news.ycombinator.com/item?id=1951274 : a few comments http://news.ycombinator.com/item?id=1951266 http://news.ycombinator.com/item?id=1951266 : no comments http://news.ycombinator.com/item?id=1941149 http://news.ycombinator.com/item?id=1941149 : no comments http://news.ycombinator.com/item?id=1940035 http://news.ycombinator.com/item?id=1940035 : no comments http://news.ycombinator.com/item?id=1938299 http://news.ycombinator.com/item?id=1938299 : a few comments