This has been posted a couple of times before; see earlier discussion here: https://news.ycombinator.com/item?id=12708344 https://news.ycombinator.com/item?id=1

This has been posted a couple of times before; see earlier discussion here: https://news.ycombinator.com/item?id=12708344 https://news.ycombinator.com/item?id=12708344