Previous discussions:<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=1147968" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=1147968</a><p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=9629797" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=9629797</a>