If the simulator for a category can produce a satisfactory simulation of a perceived stimulus then it belongs to the category, if it cannot produce a simulation the new stimulus does not belong to that category and but try a different simulator or create a new one.
If the simulator for a category can produce a satisfactory simulation of a perceived stimulus then it belongs to the category. If it cannot produce a simulation, the new stimulus does not belong to that category so the brain must try a different simulator or create a new one.