There's a two-thousand-year-old puzzle about a ship that quietly applies to your own body and mind. Real cell-dating research shows some of you never actually gets replaced, but that turns out not to be what keeps you "you" over time at all.
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There's a two-thousand-year-old puzzle about a ship that quietly applies to your own body and mind. Real cell-dating research shows some of you never actually gets replaced, but that turns out not to be what keeps you "you" over time at all.