The Ship That Was Rebuilt

Written by Studio AM.

A philosophical puzzle describes a wooden ship preserved in a harbour. Over many years, workers replace its old planks one by one. Eventually, none of the original wood remains. The vessel has continued to be maintained as the same ship. Does that continuity make it the original, even with different material?

Now imagine that the discarded planks have been kept and can be assembled into a second ship. One vessel has the continuous history of maintenance and use. The other contains the original wood. The two objects cannot both be one and the same physical ship, yet each has a claim to its identity.

The puzzle brings two possible criteria into conflict: original material and continuity through change. Choosing one criterion can produce a different answer from choosing the other. People also ask similar questions about renovated buildings and restored artworks.

The passage does not settle which criterion should always win. It shows why explaining what we mean by 'the same' matters. Before defending an answer, we need to identify the test of identity we are using.

Questions

Choose an answer. The explanation appears after you answer.

  1. Question 1 of 4

    What is the main point of the passage?

  2. Question 2 of 4

    According to the passage, what was the second ship built from?

  3. Question 3 of 4

    Someone says the continuously maintained vessel is the original even though its wood changed. Which criterion are they using?

  4. Question 4 of 4

    What does 'discarded' mean in this passage?

Score: none answered yet.

More passages

Practise reading