Extensive discussion from last month:<p><a href="https://news.ycombinator.com/item?id=8582985" rel="nofollow">https://news.ycombinator.com/item?id=8582985</a><p>Also: <a href="https://news.ycombinator.com/item?id=8712339" rel="nofollow">https://news.ycombinator.com/item?id=8712339</a>