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Why is the liver so weirdly regenerative?

576 points · 293 comments · jbotz

  1. bbor · · focus · HN ↗

       I greatly resent having to be a biological organism and subject to all the poor engineering and design decisions that entails.
    
    The first word of that sentence implies its absurdity quite beautifully. She resents, therefor she is.

    And then this:

      Brains. After you reach adulthood, neurons don’t divide. If some of your neurons die—which happens every day—then they’re gone. If you get a brain injury, the other neurons will try to “learn around” the injury, but the neurons themselves are never replaced.
    
    We need more neuroscience in schools! This summary is technically correct ofc, but to imply that the brain is missing some obviously-better option is absurd. We're meat that thinks, y'all; it's far from crap.
    1. done_lurking · · focus · HN ↗
      Why is it absurd to say that the human brain could be better? That seems obviously true to me.
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