Take any public space. Now imagine it at it's peak density, when it is as crowded as it gets, maybe due to a once-a-decade event. Now imagine installing cells i

Take any public space. Now imagine it at it's peak density, when it is as crowded as it gets, maybe due to a once-a-decade event. Now imagine installing cells in sufficient density to avoid any oversubscription on that day. This density will never happen.