SIMULATION. DUPLICATION AND EVOLUTION o In discussing the CR, Searle argues that there is an important distinction between simulation and duplication. No one would mistake a computer simulation of the weather for weather, or a computer simulation of digestion for real digestion. It is just as serious a mistake to confuse a computer simulation of understanding with understandingSIMULATION, DUPLICATION AND EVOLUTION  In discussing the CR, Searle argues that there is an important distinction between simulation and duplication. No one would mistake a computer simulation of the weather for weather, or a computer simulation of digestion for real digestion. It is just as serious a mistake to confuse a computer simulation of understanding with understanding