Which description best matches the Lerxs definition of a Digital Twin?

### Why this is right The white paper defines a Digital Twin as a mathematical model of a particular person's health that is updated as information enters the person's vault. It explicitly distinguishes the idea from an avatar or a static picture. ### The concept A **Digital Twin** in this paper is a model built from health information such as clinical history, laboratory results, and, if provided, genetic or wearable data. It is intended to help represent how health changes and to surface patterns for patients and clinicians. It is not itself a wearable device, and it does not mean that the patient's record must be copied into one central database. ### The other options - **B. A static avatar that represents a patient's appearance**: An avatar is a visual representation; the paper describes a changing mathematical health model. - **C. A centralized copy of every patient's private record**: The paper proposes distributed data and learning near the data, not centralizing all private records. - **D. A wearable device that independently diagnoses illness**: Wearables may provide data, but a Digital Twin is the model, not the device. ### Terms - **Digital Twin**: A continuously updated mathematical model of an individual person's health. ### Remember In this paper, the twin is a health model, not a visual avatar or a device.