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HPluckrose's profile
Helen Pluckrose
Helen Pluckrose
Helen Pluckrose
@HPluckrose

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Helen Pluckrose

@HPluckrose

Editor @AreoMagazine Secular, liberal humanist. Mother. Doglover. Writing book about epistemology & ethics on the academic left Helen.pluckrose@areomagazine.com

London.
areomagazine.com/author/hpluckr…
Joined August 2011

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    1. KanStaandPijpen‏ @KanStaandPijpen 26 Nov 2017
      Replying to @HPluckrose

      Evolution is way too messy for small advantages to have much of an impact. Otherwise our spines wouldn't be such a fucking mess.

      1 reply 0 retweets 0 likes
    2. Helen Pluckrose‏ @HPluckrose 26 Nov 2017
      Replying to @KanStaandPijpen

      No, it's not. This is how we refine where variation exists and it does with foreskins. They're not like spines trying to cope with us standing up.

      1 reply 0 retweets 0 likes
    3. KanStaandPijpen‏ @KanStaandPijpen 26 Nov 2017
      Replying to @HPluckrose

      Then explain why our foreskins would adapt to small advantages over the long run, whereas our spines are still ill-adapted to bipedal stance.

      1 reply 0 retweets 0 likes
    4. Helen Pluckrose‏ @HPluckrose 26 Nov 2017
      Replying to @KanStaandPijpen

      Because variation in foreskin length exists enabling them to grow longer or shorter but no human had a spine suited to bepedalism so it had to adapt imperfectly.

      2 replies 0 retweets 0 likes
    5. Helen Pluckrose‏ @HPluckrose 26 Nov 2017
      Replying to @HPluckrose @KanStaandPijpen

      Have a look at the info I sent. We had foreskins way before we were human and they always served the same function. Changes in them to become longer & more complex are small but driven by something. Our spines did not serve the function they do now. We move completely differently

      1 reply 0 retweets 0 likes
    6. KanStaandPijpen‏ @KanStaandPijpen 26 Nov 2017
      Replying to @HPluckrose

      I read it. The spine should then have a much greater impetus in changing than a foreskin that was functional as-is, right?

      1 reply 0 retweets 0 likes
    7. Helen Pluckrose‏ @HPluckrose 26 Nov 2017
      Replying to @KanStaandPijpen

      Impetus? Evolution doesn't work by what it is most needed to do apropos of nothing. Variation needs to exist and certain traits be beneficial before it can make changes within a population.

      2 replies 0 retweets 0 likes
    8. Helen Pluckrose‏ @HPluckrose 26 Nov 2017
      Replying to @HPluckrose @KanStaandPijpen

      I have a duplex renal system and so does my mother. It caused both of us problems in pregnancy so we could only have one child. My daughter did not inherit it and so it has been naturally selected out. If it had been beneficial, we'd have had more children & passed it on.

      1 reply 0 retweets 0 likes
    9. KanStaandPijpen‏ @KanStaandPijpen 26 Nov 2017
      Replying to @HPluckrose

      That isn't natural selection. That's just being lucky in not passing it on. If you hadn't been able to reproduce, it would have been NS'ed out.

      1 reply 0 retweets 0 likes
    10. Helen Pluckrose‏ @HPluckrose 26 Nov 2017
      Replying to @KanStaandPijpen

      That is natural selection. It made us only able to have one child who had a 50% chance of inheriting it. If we'd been able to have more children, there would be more copies of it now. Instead, it came to an end with the first child who didn't inherit it.

      2 replies 0 retweets 0 likes
      Helen Pluckrose‏ @HPluckrose 26 Nov 2017
      Replying to @HPluckrose @KanStaandPijpen

      Natural selection works by the number of offspring a trait enables you to have and to survive. Someone who can have 10 healthy kids has ten times the biological fitness of someone who can have one & passes on 10X as many copies of their fitter genes.

      2:32 PM - 26 Nov 2017
      1 reply 0 retweets 0 likes
        1. KanStaandPijpen‏ @KanStaandPijpen 26 Nov 2017
          Replying to @HPluckrose

          I agree.

          0 replies 0 retweets 1 like
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