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Showing posts with label Genes. Show all posts
Showing posts with label Genes. Show all posts

1/8/04

Daniel Dennett and Choice Machines


Daniel Dennett and Choice Machines

In his book Freedom Evolves, Daniel Dennett says we have more freedom if determinism is true. A determined world has less randomness, less unpredictability. It allows us to make informed judgements on reliably future events. If you are about to cross an open field in a deterministic lightning storm you can plan when lightning will next strike by measuring intervals and making your run to safety. If it strikes wholly randomly, you are at its mercy.

He says people confuse determinism with fatalism. They think JFK's assassination could not have been prevented, or that they can never avoid getting a disease.

Determinism holds every event as a result of earlier events. Cause begets effect; no event is purely accidental. "Choice" derives from antecedents.

Fatalism is determinism with you left out. It is the idea that something will happen no matter what you do. Determinism holds that an event depends on what you do, on what you know, or what you are caused to know. In short, determinism doesn't mean inevitability. (Even if the you is omitted, as in Advaita or Buddhism, fatalism is not necessarily implied. See My comments, appended to the 28 December Balsekar/Goswami/Libet article.)

Dennett distinguishes between situation-action machines and choice-machines. He calls humans choice-machines. Situation-action machines' rules say, "If in situation X, do A," "If in situation B, do Z." If the action is on the list, it is done. The rule says so. Choice machines see options, "If I did this, what would happen? Or, if I did that? If I did this other thing?" They don't have lists of rules to follow.

Where do we get our values to make these choices? They evolve over time. Of them, he says in an interview, "our responsibility for our values is not absolute and it’s not zero." You can’t choose your parents, your culture, nor even your kindergarten teacher. As you mature you can gradually assume responsibility for your own actions. We try to raise our children as moral agents, which means eventually letting go of them by saying, "I’ve done the best I can. . . . I’ve created this hopefully moral agent. . . ."

But some take responsibility; others don't. How do they differ? Dennett doesn't refer to irresponsibility, but to nonresponsibility. If you are simply unable to notice what you’re doing and its implications, you’re less responsible than somebody who can.

We learn morality much as we learn language. "We hear stories, or we watch how people get rewarded or punished, and what we see and hear shapes our characters over time." We are not born moral.

Memes. Ideas culturally evolve analogous to biological genes in evolution. Some ideas survive better than others, mutating, recombining into new ideas. Such units of cultural evolution have been called memes. Copyright and patent laws deal with some memes. Like genes, memes may be worth copying.

Genes "speak" the language of DNA and RNA. Memes are culturally more varied. Just as biology evolves, so does culture, and through memes. They don't transmit DNA information but cultural information. In fact, natural selection can favor memes over genes in that culturally well-equipped social groups can survive others. (See Richard Dawkins, Memes, genes, and God.)

The self is only a metaphor for our bodies and brains as they exist in time. Without social interactions, the self wouldn't exist. This contravenes Descartes' idea that the self does all the person's work. For Dennett, the self is functionality. It is not one thing, but little things, neurons wired together, so to say. This explains why when philosopher David Hume looked for the self he couldn't find it. It is not localized and is rather like the internet, existing as a whole but not traceable to a single node. Unlike Eastern thought, however, the self doesn't disappear. "It bottoms out with the neurons." (In practice, Eastern religions allow that ego never completely vanishes.)

To those who charge he has disenchanted the world, rendering it meaningless, he replies that he has disenchanted it but it retains meaning, which doesn't depend on magic.

It's reductionist Professor Arthur Deikman, University of California, San Francisco, would say. It reduces us to less than we are. Are we choice machines? Deikman has responded to points of view similar to Dennett's. "When mathematics and chemistry define your world, it has no meaning; the world dries up,. But, for you, as you walk the streets, engage others, live your ife, your world is charged with meaning, filled with purposes, conflicted or aligned at every level." In a context about the "realistic" perspectives of science, he asks do they "really fit what you feel, what you experience, moment by moment--or are they something you have been told, something you now think?" (From Personal Freedom, found in Spiritual/Mysticism, a web site no longer existing.

12/31/03

Memes, Genes, and God

Memes, Genes, and God


Originally proposed in Richard Dawkins' book, The Selfish Gene, 1976, memes can be defined as any self-referential belief system with inherent instructions for its own propagation. As Dawkins explained, they can be "tunes, ideas, catch-phrases, clothes fashions, ways of making pots or of building arches. Just as genes propagate themselves in the gene pool by leaping from body to body via sperms or eggs, so memes propagate themselves in the meme pool by leaping from brain to brain via a process which, in the broad sense, can be called imitation. . . . . As [Dawkins'] colleague N.K. Humphrey neatly summed up . . . 'Memes should be regarded as living structures, not just metaphorically but technically'."

Memes are analogues for genes, which is to say they are analogues for natural selection. The two may reinforce one another or come into competition. Celibacy is a meme but as a gene has no biological survival value, although culturally it may have such value. Priests or nuns transmit the meme to young boys or girls who are trying to make a life choice. Suppose the celibacy meme made better priests and nuns because they are not distracted by family duties. If this supposition is true, then celibacy does have better cultural survival value. On the other hand, a gene for celibacy almost by definition would not produce celibate offspring. Rather, no offspring would ensue from it.

Like genes, memes rest on one fundamental principle. All life evolves by varying survival abilities of replicating entities.

When we die we leave behind memes and genes. Of the two, our genes will be forgotten in three generations. Our child, maybe our grandchild, can bear a resemblance to us in face or musical talent, but our characteristics soon become negligible in succeeding generations. If we have memes such as Shakespeare's we become part of deathless literature. The same can be said for Einstein, Socrates, or Leonardo da Vinci.

Dawkins and other meme theorists regard religious memes as dangerous to human futurity. The idea of God is a particularly strong meme, and has persisted from before recorded history until the present day. It has extremely high survival value. According to Dawkins, its survival results from its psychological appeal. He says that it "provides a superficially plausible answer to deep and troubling questions about existence. It suggests that injustices in this world may be rectified in the next. . . . God exists, if only in the form of a meme with high survival value, or ineffective power, in the environment provided by human culture."

Here, Dawkins is bent by his Western understanding. Some, as in Christianity and Islam, claim to have the one true meme. It and it alone must be propagated at the risk of damnation by God. He doesn't understand that Buddhist memes make no claim to exclusivity and Hindu memes espouse tolerance.

When Dawkins says religious memes provide "a superficially plausible answer to deep and troubling questions about existence," he reveals a rather rudimentary understanding. Superficially plausible? Without Dawkins' intensive study, meditation, and effort, Buddha's teachings would not be immediately accessible to him because Buddha speaks of the quality of various experiences. Science tends to ignore the qualities of experiences and assumes all experience to be the same for its purposes. Once studied, pondered, and filtered through life experiences, the implications of Buddha's teachings open an entirely new way of seeing, one which reveals the flaws in conventional world views, particularly those which assume all experience is equal and only objective observation is necessary. Those views are superficial. (See the discussion of experience quality in Cartesian anxiety: Francisco Varela, 6 January.)

Dawkins would attach little or no credence to people such as Nisargadatta, Ramana Maharshi, or medieval Germans, Meister Eckhart or Jacob Boem as they all spoke about what might be called the "God meme." The single interesting facet of their contribution has much to do with all memes, however.

Each of them, Nisargadatta, Maharshi, Eckhart, and Boem, said that human beings can reach a point when mimesis is realized as empty phenomena. That is, they observed that the mind replicates as its natural function, but that this replication can be seen through.

This implies that the "God meme" has a basis not in superstition, but in an intuitive, innate human recognition, a recognition that mimetics derives from the source of all memes. To determine that, of course, Dawkins and others must learn attitudes, mental skills and concentration currently unknown to them; they must stop theorizing and immerse themselves in an initially alien perspective in order to experience directly whether the "God meme" is superstition or not.

From memes to genes. Dawkins would have no problem if I said that individual organisms, "selfish" or not, reveal a compulsion to perpetuate their genes and that this compulsion is a dynamic of biological regularities not apparent in an isolated system. The dynamic cannot be described in terms of DNA biochemistry. In fact, no definitive explanation can be found in any isolated system. Yet we observe among organisms the selfish gene, as Dawkins calls it.

Would he have a problem if I replace "a compulsion to perpetuate their genes" with a phrase about a compulsion to seek God? The only difference between accepting one statement and rejecting the other is not logic but mind set.*
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* ". . . I have never found it possible to dismiss the content of religious thinking simply as simply part of an outmoded phase in the consciousness of mankind. . ." Werner Heisenberg, Physics and Beyond

Meme theory is not a science, nor at present has much chance of becoming one, although it does provoke stimulating and lively discussion.