Artistic note: I had an animation of decoupling here, but after looking at it I decided it was both technically wrong and visually useless. Even though I knew what I was trying to express, I couldn't derive any meaning from the animation! So I took it down. But I had fun building it, which is the only thing that matters.
The notion of slipping the pulley probably offers a better analogy for thinking about cultural and political decoupling. I'll return to this theme after clarifying my own thoughts.
Later: I returned to the slipping-pulleys theme here.
The current icon shows Polistra using a Personal Equation Machine.