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What is a digital twin? And how can it make companies and cities more efficient?

6 min read . Updated: 17 Mar 2023, 10:23 PM IST Jackie Snow, The Wall Street Journal

San Francisco International Airport’s digital twin of its Terminal 2. (WSJ) — San Francisco International Airport’s digital twin of its Terminal 2. **(WSJ)**

These virtual replicas of real-life objects or facilities can be useful tools for studying performance, running simulations and making predictions about the physical assets they mirror

San Francisco International Airport spans over 5,000 acres, with 18 million square feet of indoor space across 97 buildings, serving more than 42 million passengers last year.

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