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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. RichC: nowhere else to go, my head is on th ground‏ @RCownie May 17
      Replying to @RCownie @gcochran99 and

      In fact, it's doubly entangled because the selective advantage of a combination of traits is not simply the multiple of the advantage of the individual traits. *And* it's entangled at the level of the genetic code.

      1 reply 0 retweets 2 likes
    2. RichC: nowhere else to go, my head is on th ground‏ @RCownie May 17
      Replying to @RCownie @gcochran99 and

      "The relationship between the efficacy of selection and recombination can be seen by considering a pair of linked loci. When two beneficial mutations arise on different genetic backgrounds, ... they compete or “interfere” with one another" https://genome.cshlp.org/content/18/4/544.full …

      1 reply 0 retweets 2 likes
    3. RichC: nowhere else to go, my head is on th ground‏ @RCownie May 17
      Replying to @RCownie @gcochran99 and

      Now you're technically correct that "Being highly polygenic has no effect on the efficacy of selection" *if* there's nothing else going on. But if there are other selection pressures on a whole lot of linked genes, then for sure it can slow down or f*ck up your polygenic trait.

      1 reply 0 retweets 2 likes
    4. Gregory Cochran‏ @gcochran99 May 17
      Replying to @RCownie @ArchieN1966 and

      "technically correct" is the best kind of correct. You're just 'incorrect'. The guys in the ag department select on highly polygenic traits all the time: no problem. Populations vary in height, but only by six standard deviations from top to bottom. Height is polygenic.

      3 replies 4 retweets 49 likes
    5. RichC: nowhere else to go, my head is on th ground‏ @RCownie May 17
      Replying to @gcochran99 @ArchieN1966 and

      Doesn't disprove the point. You can select on a highly polygenic trait when there isn't a bunch of other stuff getting in the way. But it's nonsense to expect rapid selection for cognitive attributes when there are strong and changing pressures on disease resistance & foods.

      2 replies 0 retweets 3 likes
    6. RichC: nowhere else to go, my head is on th ground‏ @RCownie May 17
      Replying to @RCownie @gcochran99 and

      We can design a fire engine with a ladder and a pump, and that's a useful thing to have. But you aren't going to get it from Formula1 race car evolution because they're busy with other issues.

      2 replies 0 retweets 2 likes
    7. Gregory Cochran‏ @gcochran99 May 17
      Replying to @RCownie @ArchieN1966 and

      I could produce a population with an IQ of 115 in one generation just by dropping high-IQ kids on an island. What you consider difficult or impossible is utterly trivial.

      3 replies 9 retweets 63 likes
    8. RichC: nowhere else to go, my head is on th ground‏ @RCownie May 17
      Replying to @gcochran99 @ArchieN1966 and

      Well, like I said, you *can* build a fire engine if the only thing you want to do is pump water and climb ladders. But that's not what you're going to get from Formula1 race car designers.

      1 reply 0 retweets 0 likes
    9. RichC: nowhere else to go, my head is on th ground‏ @RCownie May 17
      Replying to @RCownie @gcochran99 and

      Similarly, it's undeniable that some individuals have exceptional cognitive abilities. It's just not at all obvious that the actual forces of natural selection in human prehistory since our common ancestors came out of Africa ever tried hard to isolate groups of such people.

      1 reply 0 retweets 0 likes
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      Covfefe Anon‏ @CovfefeAnon May 18
      Replying to @Rite_Brite @RCownie and

      Nope, all environments filter for the same level of intelligence and chance mutations that increase intelligence are evenly distributed across separated populations and introgressions from different archaic hominids all raised / lowered intelligence the same amount.

      10:28 PM - 18 May 2021
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      0 replies 0 retweets 1 like

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