 The meaning of “I” provides a model for the meaning of names, but is there a candidate meaning for a name that fits this model? “I” does not refer to the same person every time it is used, so we might reasonably suppose that it provides a better model for a generic name—also used for different people—than a specific one. The rough thinking being that if a name is only ever used to refer to one thing (as a specific name is), there is no real need for a general rule of use.