Already discussed in more than one thread, see https://news.ycombinator.com/item?id=37942403 https://news.ycombinator.com/item?id=37942403 , https://news.ycombi

Already discussed in more than one thread, see https://news.ycombinator.com/item?id=37942403 https://news.ycombinator.com/item?id=37942403 , https://news.ycombinator.com/item?id=37940317 https://news.ycombinator.com/item?id=37940317 and others.