Educational experiences are linked to learners' own interests, implicit theories, desires and goals (Hunt's inside-out learning), which kindles intrinsic motivation and can grow into committed purpose. Kolb warns, citing Dewey, Kohn and Deci and Ryan, that spaces built on extrinsic rewards and punishments (marks, prizes, examinations used as levers) can drive out intrinsically motivated learning.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.