Few real-world structures save those engineered specifically to be so enjoy such isolation. There needs to be context-setting structures that put tools in their place in human affairs. The specifics of the metal and chemical trades must be addressed, and economics and retailing become a part of the general context. Yet more models would have to be evoked to place me and it in the loft, and still more to 'explain' hurt thumbs. The real world does not model itself, and there appears to be no need to evoke a grand modeler.
Existence is an endless train of events that spark off each other.
That is, irrespective of what it is that makes up the phenomena that we call space, time, matter and potential, the specific configurations into which the manifestations of this are arranged encode all manner of specific ways. These break the symmetry innate to a disordered system. That is what science usually sets out to undertake. It is very successful in its aims, but this very success may blind us to the operational importance of the specific. This encoded information can exist in independent, abutting, nested or hierarchical structures.