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Re: Meme-gene coevolution (Was: Static memes question)

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  • Tony Balazs
    Sent from my iPad ... Presumably not. But genes don t have functions in that sense. Their functions are to code for peptides. Probably many peptides, or their
    Message 1 of 10 , Jul 2, 2013
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      Sent from my iPad

      On 23 Jun 2013, at 22:22, David Deutsch <david.deutsch@...> wrote:

      >
      > On 21 Jun 2013, at 13:46, Tony Balazs <tony@...> wrote:
      >
      >> On 14 Jun 2013, at 09:00, David Deutsch <david.deutsch@...> wrote:
      >>
      >>> On 13 Jun 2013, at 22:41, hibbsa <hibbsa@...> wrote:
      >>>
      >>>> --- In Fabric-of-Reality@yahoogroups.com, David Deutsch <david.deutsch@...> wrote:
      >>>>>
      >>>>> Genes and memes do sometimes co-evolve, though.
      >>>>
      >>>> Oh say? What sort of scenario are you thinking of?
      >>>
      >>> One example is that the hardware we use for speaking co-evolved with the evolution of languages.
      >>>
      >>> An interesting one that was pointed out to me recently was that genes in dogs for following the direction of a human's gaze co-evolved with the human behavior of keeping dogs.
      >>>
      >>> -- David Deutsch
      >>
      >> How can one legitimately speak of "genes in dogs for following the direction of a human's gaze"? There are only 20,000 genes in the human genome (far fewer than anticipated) and probably a similar number in a dog's. If there were genes with such narrowly defined functions, there would have to be millions of them.
      >
      > Presumably not all genes have such narrowly defined functions.
      >
      > -- David Deutsch
      >
      Presumably not. But genes don't have functions in that sense. Their functions are to code for peptides. Probably many peptides, or their products, contribute to dogs' ability to follow a human's gaze, but I doubt that any of them, or any combination, would have only that function.

      Tony
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