Alice and Bob in Wonderland: Why can't we walk through walls?

          @misc{ scivideos_PIRSA:12030132,
            doi = {},
            url = {https://pirsa.org/12030132},
            author = {},
            keywords = {},
            language = {en},
            title = {Alice and Bob in Wonderland: Why can{\textquoteright}t we walk through walls? },
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2012},
            month = {mar},
            note = {PIRSA:12030132 see, \url{https://scivideos.org/pirsa/12030132}}
          }