If every cell in your body were replaced, and every memory you possessed were erased, would your name still point to *you*? We often treat names as mere linguistic convenience—labels on a jar—but philosophy suggests they are the "rigid designators" that hold the universe of identity together across all possible worlds.
## Beyond the Label: The Rigid Designator
In common parlance, we assume a name is a shorthand for a description. We think "Aristotle" means "the author of the *Nicomachean Ethics*" or "the teacher of Alexander the Great." However, [Saul Kripke](https://en.wikipedia.org/wiki/Naming_and_Necessity) revolutionized this view in his seminal work *Naming and Necessity*.
Kripke argued that names are **rigid designators**: they refer to the same object in every possible world where that object exists. Even if Aristotle had never gone into philosophy and had instead died a fisherman, the name "Aristotle" would still refer to him. The name is not a summary of facts; it is a causal chain that links back to an initial "baptismal" event.
> "A name is not a synonym for a description, but a pointer that stays fixed even when all the descriptions we associate with the object turn out to be false." — Saul Kripke, *Naming and Necessity*.
## Sense and Reference: The Fregean Puzzle
Before Kripke, [Gottlob Frege](https://plato.stanford.edu/entries/frege/#SenRef) puzzled over why names carry different cognitive values. If a name merely pointed to an object, then the sentences "Hesperus is Hesperus" and "Hesperus is Phosphorus" should be identical in meaning.
Both names refer to the planet Venus (the **Reference** or *Bedeutung*). However, "Hesperus" (the Evening Star) and "Phosphorus" (the Morning Star) carry different **Senses** (*Sinn*). The "Sense" is the mode of presentation—the way the name illuminates the object for the thinker. Philosophically, a name is not just a target; it is a perspective.
## The Performative Power of Naming
Beyond logic and semantics, naming is an act of creation. In the [Cratylus](https://plato.stanford.edu/entries/plato-cratylus/), Plato explores whether names are natural (fitting the essence of the thing) or purely conventional (arbitrary social contracts).
Modern philosophy often leans toward the latter, viewing naming as a [performative utterance](https://en.wikipedia.org/wiki/Performative_utterance). As J.L. Austin noted, to name a ship or a child is not to describe the world, but to change it. By bestowing a name, we move an object from the realm of the anonymous and "undifferentiated" into the realm of the social and legal subject.
## Further Exploration
1. If names are arbitrary conventions, why do we feel a profound sense of "identity theft" when someone uses our name without permission?
2. Can we ever truly name a "thing-in-itself," or are we only ever naming our human perception of that thing?
3. How does the rise of digital "handles" and "pseudonyms" alter the Kripkean causal chain of identity in the 21st century?