# Digital twin

A live virtual replica of a physical asset — machine, warehouse, city block — fed by IoT sensors. Teams simulate changes and train robot AI in the twin before touching the real thing, collapsing risk and cost.

Canonical: https://robauto.ai/learn/iot-robotics/9

_IoT & Robotics: AI in the Physical World — lesson 9 of 20 (DEFINITION)_

A live virtual replica of a physical asset — machine, warehouse, city block — fed by IoT sensors. Teams simulate changes and train robot AI in the twin before touching the real thing, collapsing risk and cost.

Source: [IBM — What is a digital twin?](https://www.ibm.com/topics/what-is-a-digital-twin?utm_source=robauto)

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