Welcome and Opening Remarks

          @misc{ scivideos_PIRSA:18080042,
            doi = {10.48660/18080042},
            url = {https://pirsa.org/18080042},
            author = {Johnson-Freyd, Theo and Henriques, Andre},
            keywords = {},
            language = {en},
            title = {Welcome and Opening Remarks},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2018},
            month = {aug},
            note = {PIRSA:18080042 see, \url{https://scivideos.org/pirsa/18080042}}
          }