The Ship of Theseus

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Across
  1. 2. The vessel used in the famous thought experiment.
  2. 5. The state of being awake and aware of one's surroundings.
  3. 9. A part or element of a larger whole.
  4. 13. The mythical Greek hero who owned the ship in the thought experiment.
  5. 15. The philosopher who argued identity is based on memory.
  6. 16. To regrow or be renewed, like cells in the body.
  7. 17. A situation combining contradictory features; a logical knot.
  8. 18. The unbroken and consistent existence of something over time.
  9. 19. Unchanging over time or unable to be changed.
  10. 20. The fact of being who or what a person or thing is.
Down
  1. 1. The Greek historian who famously recorded the ship riddle.
  2. 3. The philosopher who added the "scavenger" twist to the riddle.
  3. 4. Biologically, to process food; metaphorically, to integrate experiences.
  4. 6. The basic units of a chemical element; the building blocks of matter.
  5. 7. The quality of being logical and consistent; holding together.
  6. 8. The quality of being real, true, or genuine.
  7. 10. A spoken or written account of connected events; a story.
  8. 11. An exact copy or model of something, often implying secondary status.
  9. 12. A state of continuous change or flow.
  10. 14. A thing with distinct and independent existence.