The Ship of Theseus
Replace a ship's planks one at a time until not one original piece is left. Is it still the same ship?
c. 75 CE (Plutarch's report of an older dispute)20 min read
American analytic metaphysics
Theodore Sider
Professor of philosophy at Rutgers University. His Four-Dimensionalism (2001) is the standard defence of the view that objects persist by having temporal parts, which turns the Ship of Theseus from a question about one object into a question about two overlapping spacetime worms.