What are the most pressing open questions in the application of the RG to gravity?

          @misc{ scivideos_PIRSA:14040090,
            doi = {10.48660/14040090},
            url = {https://pirsa.org/14040090},
            author = {Smolin, Lee and Speziale, Simone},
            keywords = {},
            language = {en},
            title = {What are the most pressing open questions in the application of the RG to gravity?},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2014},
            month = {apr},
            note = {PIRSA:14040090 see, \url{https://scivideos.org/index.php/pirsa/14040090}}
          }