3 thoughts on “Theseus returns. Or does he?

  1. The trouble with thought experiments is they tend to be unrealistic.

    You can’t completely replace all the parts of a ship this way. There is a chassis: the keel, which you simply can’t get at without first getting everything else out of the way.

    Every complex piece of machinery has a chassis of some sort. When you assemble something, you start with the chassis and add stuff. When you disassemble something, the chassis is what you’re left with.


    1. True enough, although I might be able to reconstruct something modularly or land-based without this complication—perhaps a house. Even more relevant, the fact that the average life of a human cell is 7 years—some much shorter or longer—, the question of identity remains.


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