Welcome and Opening Remarks

          @misc{ scivideos_PIRSA:21060019,
            doi = {10.48660/21060019},
            url = {https://pirsa.org/21060019},
            author = {Heffernan, Anna},
            keywords = {Other Physics},
            language = {en},
            title = {Welcome and Opening Remarks},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2021},
            month = {jun},
            note = {PIRSA:21060019 see, \url{https://scivideos.org/index.php/pirsa/21060019}}
          }