Asay offers a stringent metaphysical challenge to conceptual engineering by separating concepts from the phenomena they enable us to think about. Philosophy, he argues, is ultimately concerned with knowledge, justice or causation themselves, not merely with the concepts that represent them. On this view, revising an entrenched concept is impossible in the strict sense: once its target changes, a new concept has been created. The apparent weakness becomes a productive clarification. Conceptual innovation remains philosophically powerful, but it should not be inflated into an overarching methodology or confused with the transformation of reality itself. Asay’s operation is therefore one of ontological discipline, forcing conceptual engineers to specify what exactly changes when vocabularies are redesigned. His argument provides an indispensable counterweight to artefactual and interventionist accounts: no infrastructure of naming should mistake its representational agency for sovereign control over phenomena. The bridge to archival and spatial practice is clear—redrawing a map may reorganise perception and action, but it does not by itself rebuild the territory.
