Previous discussions:<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11648758" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11648758</a> (main)<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11653490" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11653490</a><p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11653839" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11653839</a>