The gap between vision and a clear view of current reality generates creative tension, the idea at the heart of personal mastery. It must be distinguished from emotional tension (anxiety, discouragement), whose easy relief is to lower the vision, an eroding-goals dynamic that operates in organizations as quietly slipping standards; mastery treats failure as a shortfall to learn from and brings perseverance and patience.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.