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9. Objects / E. Objects over Time / 9. Ship of Theseus

[does his ship remain if its parts are steadily changed?]

19 ideas
The ship which Theseus took to Crete is now sent to Delos crowned with flowers [Plato]
Replacing timbers on Theseus' ship was the classic illustration of the problem of growth and change [Plutarch]
If a new ship were made of the discarded planks, would two ships be numerically the same? [Hobbes]
Some individuate the ship by unity of matter, and others by unity of form [Hobbes]
Bodies, like Theseus's ship, are only the same in appearance, and never strictly the same [Leibniz]
The purpose of the ship makes it the same one through all variations [Hume]
Insurance on the original ship would hardly be paid out if the plank version was wrecked! [Frede,M]
The question is not what gets the title 'Theseus' Ship', but what is identical with the original [Wiggins]
Priests prefer the working ship; antiquarians prefer the reconstruction [Wiggins]
If you reject transitivity of vague identity, there is no Ship of Theseus problem [Inwagen]
Thinking of them as 'ships' the repaired ship is the original, but as 'objects' the reassembly is the original [Jubien]
Rearranging the planks as a ship is confusing; we'd say it was the same 'object' with a different arrangement [Jubien]
If you can have the boat without its current planks, and the planks with no boat, the planks aren't the boat [Heil]
If 5% replacement preserves a ship, we can replace 4% and 4% again, and still retain the ship [Lowe]
A renovation or a reconstruction of an original ship would be accepted, as long as the other one didn't exist [Lowe]
If old parts are stored and then appropriated, they are no longer part of the original (which is the renovated ship). [Lowe]
The ship undergoes 'asymmetric' fission, where one candidate is seen as stronger [Sider]
An entrepreneur and a museum curator would each be happy with their ship at the end [Simons]
The 'best candidate' theories mistakenly assume there is one answer to 'Which is the real ship?' [Simons]