Some of this you covered in your comment in that thread (https://news.ycombinator.com/item?id=3750882 https://news.ycombinator.com/item?id=3750882). Is there an

Some of this you covered in your comment in that thread (https://news.ycombinator.com/item?id=3750882 https://news.ycombinator.com/item?id=3750882). Is there anything in the past four years that you learned since that comment?