Learners use their concepts to make decisions and solve problems, putting the learning to use at work or in their lives and testing the implications in practice, which generates new experience and closes the cycle. Kolb treats action as the point where inner experiencing, reflecting and thinking meet real consequences; it is supported by initiative, goal setting and cycles of feedback on performance, and it is blocked by too much internal processing. Programmes that spend weeks impressing information and only hours on learners expressing and testing it are the imbalance he criticises.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.