We run simulations of others all the time, trying to predict what they do. One theory is that this was a driver of the evolution of intelligence - which also enabled us to simulate ourselves, giving us self-awareness.<p>For people will know well, we often have a definite idea of how they would react in situation - so that even when they have passed on, they still live, in some sense, within us. Perhaps in quite a real sense, they do, via the model/simulation we have of them.<p>Authors explicitly simulate characters, and some authors report their characters making their own decisions, and leading a life of their own, frustrating the author's plans for them.<p>So... a "partial Turing Test" would be for a computer to predict what a given person will do; and compare this with what another human, who knows them equally well, predicts they will do. The more accurate prediction of how that given person does respond, has a better model/simulation of that person.