This is a duplicate of a submission from three months ago: http://news.ycombinator.com/item?id=1652127 http://news.ycombinator.com/item?id=1652127 It's also b

This is a duplicate of a submission from three months ago: http://news.ycombinator.com/item?id=1652127 http://news.ycombinator.com/item?id=1652127 It's also been discussed extensively in other submissions: http://news.ycombinator.com/item?id=1891212 http://news.ycombinator.com/item?id=1891212 http://news.ycombinator.com/item?id=834599 http://news.ycombinator.com/item?id=834599