I am very fascinated by the semantics vs. syntax of empathy. Suppose you have a savant who is good at systematic identification of literary characters, or criminal profiling or DSM-IV case files; in another words, he or she is very good at reading people and classifying them into logical/hierarchical systems of mental, historical and social backgrounds; and miming their behavior when interacting with them, just as a savant with photographic memory can "mime" the Manhattan skyline in drawing.
Would we classify such a person as empathetic or sociopathic? If their empathy comes not from a human emotional instinct but from logical deduction?