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CovfefeAnon's profile
Covfefe Anon
Covfefe Anon
Covfefe Anon
@CovfefeAnon

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Covfefe Anon

@CovfefeAnon

Not to be confused with 2001 Nobel Peace Prize winner Kofi Annan. 54th Clause of the Magna Carta absolutist. Commentary from an NRx perspective.

Joined July 2017

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    1. A. S. "may have been obtained through hacking"‏ @LoCtrl Aug 5
      Replying to @CovfefeAnon @ImmuneHack

      A physical difference in organs is evidence but not a proof of selection pressure on that specific organ. Harmless mutations and path dependency could cause divergence. Occasionally genes are responsible for several things at once.

      1 reply 0 retweets 1 like
    2. Covfefe Anon‏ @CovfefeAnon Aug 5
      Replying to @LoCtrl @ImmuneHack

      Oh, you're insane - got it.

      1 reply 0 retweets 1 like
    3. A. S. "may have been obtained through hacking"‏ @LoCtrl Aug 7
      Replying to @CovfefeAnon @ImmuneHack

      No. Many genes are pleiotropic. As a consequence, a change can in sttucture could carry no effect because it is a side effect of selection acting on a completely different function. On top of that, there is drift https://www.nature.com/scitable/topicpage/pleiotropy-one-gene-can-affect-multiple-traits-569/ …

      1 reply 0 retweets 1 like
    4. Covfefe Anon‏ @CovfefeAnon Aug 7
      Replying to @LoCtrl @ImmuneHack

      Right, you're insane. "No, you see brain structure and size differences by human species are caused by differential selective pressure in other areas that cause them but those differences then have no functional results."

      1 reply 0 retweets 1 like
    5. A. S. "may have been obtained through hacking"‏ @LoCtrl Aug 7
      Replying to @CovfefeAnon @ImmuneHack

      Look I was an evolutionary biologist in my former life. One of the first things you learn in evolutionary biology is to be careful about inferring specific selection pressure from a single difference in morphology.

      2 replies 0 retweets 2 likes
    6. A. S. "may have been obtained through hacking"‏ @LoCtrl Aug 7
      Replying to @LoCtrl @CovfefeAnon @ImmuneHack

      Regarding brain size — let me show specifically what it means to be careful. Men have larger brains than women. Does it mean men were naturally selected to be smart, unlike women? (This is not a question whether they are actually smarter). The answer is “no.” Why?

      2 replies 0 retweets 2 likes
    7. A. S. "may have been obtained through hacking"‏ @LoCtrl Aug 7
      Replying to @LoCtrl @CovfefeAnon @ImmuneHack

      In most species of mammals (just look at your cat), males have larger skulls. They need large skulls for biting and even simply intimidating opponents because they get into more fights. Let’s say there was a gene that determined “growth rate in head area, including brain.”

      1 reply 0 retweets 1 like
    8. A. S. "may have been obtained through hacking"‏ @LoCtrl Aug 7
      Replying to @LoCtrl @CovfefeAnon @ImmuneHack

      That gene would be selected for and would drive larger skull size *and* larger brain size. But then an Internet amateur RW sleuth steps in and says: “Large brain = more smarts. Obviously male brains are bigger because they were selected for IQ. How could you not possibly see it”

      1 reply 0 retweets 3 likes
    9. Covfefe Anon‏ @CovfefeAnon Aug 7
      Replying to @LoCtrl @ImmuneHack

      Larger brains are correlated with more intelligence. Replicated in tons of studies, makes complete evolutionary sense because brain tissue is metabolically expensive. Men are larger than women but still have larger brains per body weight and are a bit more intelligent on average

      1 reply 0 retweets 2 likes
    10. A. S. "may have been obtained through hacking"‏ @LoCtrl Aug 7
      Replying to @CovfefeAnon @ImmuneHack

      As I said directly above, this is not a question of who is more intelligent. This is a refutation of your claim that appearance of some trait is always a direct result of natural selection *for* that specific trait.

      1 reply 0 retweets 1 like
      Covfefe Anon‏ @CovfefeAnon Aug 7
      Replying to @LoCtrl @ImmuneHack

      Much more complicated talking about the differences between men and women because they share a lineage. Far easier to evaluate causes of a difference across species.

      10:44 PM - 7 Aug 2021
      • 1 Like
      • peartan314513
      1 reply 0 retweets 1 like
        1. A. S. "may have been obtained through hacking"‏ @LoCtrl Aug 7
          Replying to @CovfefeAnon @ImmuneHack

          My example trivially translates to differences between species.

          0 replies 0 retweets 0 likes
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