Previously submitted twice with no comments each time (but I think it is a cool article as well):<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=7385399" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=7385399</a>
<a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=5462445" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=5462445</a>