1. when discussing an analogy, recognise its limits, at some point all analogies cease to be useful. This is usually the point where they introduce more complexity....which would seem to be the case here
The graph isn't an analogy, it directly represents the relationship of power between nage and uke. I think what the graph informs of Aikido is very simple. I wrote a little more clarification in post #291 in my long introductory thread. Please let me know what you find confusing about it.