Along the tide-swept shores and marshlands of a once-major city, people have gone but the artifacts of their era linger: rusted vehicles, heaped tires, crushed cement and glass. Old structures fall. Mechanical observation systems glitch. Wildlife roam these derelict lands anew. In the absence of human perception linear progressions falter and time moves in loops and skips, unpredictable. And over geologic time, even our most impervious creations will degrade and cease to exist.