Duplicates, but with no discussion:<p><a href="http://news.ycombinator.com/item?id=2151811" rel="nofollow">http://news.ycombinator.com/item?id=2151811</a><p><a href="http://news.ycombinator.com/item?id=2014181" rel="nofollow">http://news.ycombinator.com/item?id=2014181</a><p><a href="http://news.ycombinator.com/item?id=2007700" rel="nofollow">http://news.ycombinator.com/item?id=2007700</a><p>Related:<p><a href="http://news.ycombinator.com/item?id=1916943" rel="nofollow">http://news.ycombinator.com/item?id=1916943</a><p><a href="http://news.ycombinator.com/item?id=1607832" rel="nofollow">http://news.ycombinator.com/item?id=1607832</a>