As per HN Guidlines, please don't be snarky. You may have a very valid point, and it is great to back it up with links to more info, but please state what the point you are making is, rather than just a snarky comment with a link
3. Am kind, just busy so i don't have time to summarize for you the paper that you can just as well read yourself. In fact, it has an abstract, which is a summary, right up front.