Relativity Lecture - 101623

          @misc{ scivideos_PIRSA:23100038,
            doi = {},
            url = {https://pirsa.org/23100038},
            author = {Kubiznak, David},
            keywords = {},
            language = {en},
            title = {Relativity Lecture - 101623},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2023},
            month = {oct},
            note = {PIRSA:23100038 see, \url{https://scivideos.org/pirsa/23100038}}
          }