A simulation is an imitation of a real process, system, or situation, often done with computers or models, to study or practice what might happen. It can also mean pretending or faking something.
“Simulation” comes from Latin “simulatio,” meaning pretense or imitation, from “simulare,” to imitate, from “similis,” like. The scientific and computer sense grew from this idea of copying reality. The word has always carried the idea of something that looks real but isn’t the original.
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