Kripke's Theory of Rigid Designators

Kripke's Theory of Rigid Designators states that certain names or terms—like "Albert Einstein"—refer to the same specific individual in all possible situations or worlds. These names are "rigid" because, regardless of different circumstances or beliefs about that person, the name consistently points to the same person. This idea helps distinguish between different types of descriptions and explains how we can meaningfully talk about objects or people across various hypothetical scenarios without losing track of who or what we mean.