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To be clear you can't breed mammals like plants, the "back crossing" in Dune does not work on humans.

• dekhn 3y ago
  Do you mean "can't" as in it's technically impossible, or do you mean "can't" as in it's not ethical? Most of our science seems compatible with the idea that you can back-cross mammals, after all we do that in mice all the time.
  • Vecr 3y ago
    You can't as in it won't work. Not that eugenics as a whole can't work, but you can't back cross.
    • dekhn 3y ago
      Why can you back-cross in mice but not humans? That doesn't sound right.
      • Vecr 3y ago
        I'd have to check the source. What traits are they looking for in the mice?