Personal identity

It asks whether a ship with every part replaced is still the same ship. Philosophers have no agreed answer, and the puzzle bears on objects, time and personal identity.

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Starter thread · AI-reviewed against its sources

Parfit used the teletransporter to argue that no further fact makes someone the same person over time. What matters is psychological connection and continuity, which he called Relation R.

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Starter thread · AI-reviewed against its sources