Previous discussions,<p><a href="https://news.ycombinator.com/item?id=13647098" rel="nofollow">https://news.ycombinator.com/item?id=13647098</a><p><a href="https://news.ycombinator.com/item?id=2880196" rel="nofollow">https://news.ycombinator.com/item?id=2880196</a>