Derek Parfit's view on personal identity emphasizes the fluidity of identity, asserting that it is constantly changing due to the ongoing regeneration of cells and the movement of atoms. He distinguishes between two perspectives: "as it is," which recognizes the objective changes in our physical makeup, and "as we regard it," which highlights the subjective nature of identity perception. Critics of Parfit's theory point out flaws, particularly in how it addresses the continuity of personal identity amidst these changes.
PREREQUISITESPhilosophers, students of metaphysics, and anyone interested in the complexities of personal identity and its implications in ethical discussions.