Also discussed here: https://news.ycombinator.com/item?id=10135078 https://news.ycombinator.com/item?id=10135078 and here: https://news.ycombinator.com/item?

Also discussed here: https://news.ycombinator.com/item?id=10135078 https://news.ycombinator.com/item?id=10135078 and here: https://news.ycombinator.com/item?id=10626291 https://news.ycombinator.com/item?id=10626291