The Inside of a Container supports concurrent Transformation of its Contents, just like the inside of a theater full of people supports concurrent breathing.
In that metaphor, all transactions are between a person and the air in the room, between content and context. There is no Interaction between contents, no direct connections between people in the room. All may be immersed in (contained by) watching the movie. None are watching the other movie-goers.
~
The physicality of Containers means that we can viscerally interact with James Forms.