T he construction industry has fallen hard for the phrase digital twin . The promise is seductive: a perfect, living digital replica of the built environment — one you can explore, analyze, simulate, and even predict the future with. Marketing imagery sells the dream perfectly: glossy, high-resolution point clouds, watertight meshes, fully navigable 3D models that seem to capture every last detail of a building or site. In theory, this digital counterpart lets project teams u