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Factories and cities increasingly build a live, sensor-fed virtual replica of a real machine or building that updates as the physical one changes, viewed in 3D to predict failures.
A digital twin continuously feeds real-time sensor data from a physical machine or building into a matching virtual 3D model, so the digital version behaves like a live mirror rather than a static blueprint. Engineers run simulations on it, testing stress or wear, catching problems before they happen in the real world.
A screen saver is an idle visual display unconnected to real data, and a spreadsheet organizes static numbers, neither modeling live 3D physical behavior.
Digital twins are increasingly paired with AR or VR, letting an engineer virtually walk around equipment on the other side of the world as if standing next to it.
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