It _may_ be possible, and the inaccuracies in such a simulation _might_ be useful to meet some goal, if a valuable use could be determined that would justify the costs involved, but there's nothing inevitably true about any of those propositions. It's a bit like the Drake equation, reasonable people can assign different probability values to the various factors and come to radically different conclusions.
For example if I think there's a very low chance a valuable enough use for such a simulation could be found, and there's a low chance such a simulation would meet the criteria to be useful, and that there's a low chance such a simulation would need to be so accurate as to have actually conscious simulated inhabitants to meet those goals, then the chance that we are in a simulation comes to be vanishingly small.
For example if I think there's a very low chance a valuable enough use for such a simulation could be found, and there's a low chance such a simulation would meet the criteria to be useful, and that there's a low chance such a simulation would need to be so accurate as to have actually conscious simulated inhabitants to meet those goals, then the chance that we are in a simulation comes to be vanishingly small.
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