Dupe: <a href="https://news.ycombinator.com/item?id=31675015" rel="nofollow">https://news.ycombinator.com/item?id=31675015</a><p>Substantial discussion there.<p>That, in turn, points to even more discussion here:<p><a href="https://news.ycombinator.com/item?id=31149038" rel="nofollow">https://news.ycombinator.com/item?id=31149038</a>