This paper has been shown one month ago:https://news.ycombinator.com/item?id=41484991 https://news.ycombinator.com/item?id=41484991. Now it's back to headlines

This paper has been shown one month ago:https://news.ycombinator.com/item?id=41484991 https://news.ycombinator.com/item?id=41484991. Now it's back to headlines of HN.Seems like people all interested in this topic.