- We need a general solution to a cluster of related paradoxes in which numerically distinct material objects appear to share exactly the same parts. Those paradoxes include the statue1 and the lump of clay, undetached parts, fission, fusion and longevity, vague identity, and conventional identity.
- A good solution is given by the 'worm theory', according to which continuants are aggregates of temporal parts; a better solution is given by the 'stage theory2', according to which continuants are instantaneous temporal parts, whose temporal properties are understood via temporal counterpart theory.
- There are other solutions that do not appeal to temporal parts: Wiggins's constitution theory, Burke's dominance view, Gallois's temporary identity3 theory, eliminativism, and mereological essentialism. But these are arguably inferior: some are insufficiently general, others are subject to powerful criticisms.
- The threat of coincidence – 141
- The worm theory and coincidence – 152
- Coinciding three-dimensional objects – 154
- Burke's dominance account – 161
- Temporary identity4 – 165
- Eliminativism – 176
- Mereological essentialism – 180
- The stage view5 – 188
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