Chapter 6 treated MAGE as a theory: an explanation of how agentic capacity, representation, enforcement, engineering capital, and the surrounding environment interact; what that account predicts; where it should apply; and how it might be tested.
This final chapter asks what follows if that account is substantially right. It moves outward from the theory to the profession: first to how abundant implementation reorganizes software work, then to MAGE's relationship with older engineering and computing traditions, then to what the theory means beyond software, and finally to the engineer's expertise, authority, education, and responsibility.
Delegation changes what engineers do and how they exercise control. It does not remove their responsibility for what they build.
The synthesis
When implementation becomes abundant, software engineering does not disappear. Its scarce work moves. Engineers can delegate more realization while remaining responsible for the resulting system. Their work increasingly centers on retaining informed control: deciding what must be true, choosing representations that make consequential properties understandable, establishing evidence, allocating authority, coordinating autonomous work, and accepting consequential tradeoffs.
The same account suggests a broader engineering problem: how people retain informed control when agents perform consequential engineering work in domains whose representations, evidence, and means of enforcement differ from software.