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I play the Ship of Theseus problem card and I follow up with the argument there never was an original Riker to begin with. https://en.wikipedia.org/wiki/Ship_o

• taneq 5y ago
  This is where I always end up with these kinds of things. Riker didn't die, and in fact neither life nor Riker ever really existed as a coherent entity.
• arp242 5y ago
  I believe it takes about seven years for every particle in our bodies to be swapped out; all the atoms in your body today are different from those of seven years ago. In a sense, we're never truly "original".
  • dogma1138 5y ago
    Every particle in your body doesn’t get swapped out which is how they can do molecular analysis on things like teeth and bones to try and pin point where you grew up. Even if every cell in your body is replaced over a 7 years period which they don’t since not all cells actually undergo mitosis or are even replaced through stem cells not every molecule in your body needs to be replaced for that to happen and in fact it doesn’t it would be exceedingly wasteful and impractical. So the many if not most hydrogen molecules you were born with are still probably somewhere in your body.