This has been discussed on hn before: https://news.ycombinator.com/item?id=17433908 https://news.ycombinator.com/item?id=17433908 https://news.ycombinator.com

This has been discussed on hn before: https://news.ycombinator.com/item?id=17433908 https://news.ycombinator.com/item?id=17433908 https://news.ycombinator.com/item?id=17874320 https://news.ycombinator.com/item?id=17874320 https://news.ycombinator.com/item?id=12157443 https://news.ycombinator.com/item?id=12157443 The last link has a comment with even further links.