Advanced · Systems

Digital Twin

Visual diagram · (in preparation) · Math · (in preparation) · Worked example · 3 difficulty levels.

TL;DR. A high-fidelity virtual replica of a physical system that updates in real time from sensor data.

Technical Definition

A high-fidelity virtual replica of a physical system that updates in real time from sensor data.

How it works

Digital twins of factories, jet engines, cities, and even patients enable what-if simulation, predictive maintenance, and AI-driven optimization. They combine physics simulation, real-time data ingestion, and ML surrogates of expensive computations.

Related Concepts

• Real-time Processing — Handling data and producing results within strict latency bounds, often milliseconds.
• Simulation — Synthetic environments that let agents or models train and be evaluated without real-world risk.