Extensive discussion: https://news.ycombinator.com/item?id=15577885

Also:

    Paper identifier
    '1710.08864.pdfhttps:/arxiv.org'
    not recognized

    There appears to be a valid arXiv paper identifier
    within '1710.08864.pdfhttps:/arxiv.org'.  Perhaps
    the link you followed was intended as a link to
    arXiv:1710.08864.

Links:

* https://arxiv.org/abs/1710.08864

* https://arxiv.org/abs/1710.08864.pdf