Posted here in 2009: <a href="http://news.ycombinator.com/item?id=511908" rel="nofollow">http://news.ycombinator.com/item?id=511908</a><p>Also relevant: <a href="http://news.ycombinator.com/item?id=3626694" rel="nofollow">http://news.ycombinator.com/item?id=3626694</a>