Discussed previously:<p><a href="https://news.ycombinator.com/item?id=15329699" rel="nofollow">https://news.ycombinator.com/item?id=15329699</a><p><a href="https://news.ycombinator.com/item?id=15356304" rel="nofollow">https://news.ycombinator.com/item?id=15356304</a><p><a href="https://news.ycombinator.com/item?id=15352649" rel="nofollow">https://news.ycombinator.com/item?id=15352649</a>