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Following are notes from 3 different people who attended the Dawkins Lecture. Enjoy! ---------------------------------------------------------------------- >From C. Larue: On Monday, October 11 @ 7PM, Dr. Richard Dawkins spoke @ the Grand Valley State University Performing Arts Center- LAT. The topic was after his 1998 book: Unweaving the Rainbow; Science, Delusion, and the Appetite for Wonder.
This was sponsored by the Science and Mathematics Division and the Dean of Science and Mathematics, P.Douglas Kindshi, introduced him, also giving credit to Carl Bajema for his efforts to make this lecture happen.
To an audience filling the 400 person capacity room as well as another one that was linked via audio-visual equipment, the Professor of the Public Understanding of Science @ Oxford University in England gave a multi-textured presentation, followed by an audience question and answer period for a combined hour and a half duration. Following the lecture was a book signing. Many of the FAOWM members later got together for stimulating conversation @ the Afterwards Coffeehouse by the south end of the campus.
He began with the theme developed in his book sharing the lecture title, that unlike what the poet Keats and some other notable wordsmiths maintained, scientific understanding of the natural events of the Universe does not take away from the poetry and beauty detected in this exploration. The great Isaac Newton was said to have destroyed the mysterious wonder of the rainbow when he used a prism to break apart white light into its various wavelengths; it was seen as clipping an angel's wing. All throughout the presentation, evolutionary biologist and zoologist Dawkins refuted this belief that the scientist espouses a "cold, bleak, worldview" but also said that even if the facts and foundations of scientific inquiry led one to such a view..."then that's tough. Let us all grow up!"
Dawkins briefly talked of how Newton's investigations paved the way for Einstein's Special Relativity and Quantum Physics. One discovery leading to another. The Universe and our own galaxy, our own heliocentric system and our own planet; its history and underlying processes expanding in direct proportion to our scientific discoveries. He quoted John Ruskin: "For most men an ignorant enjoyment is better than an informed one." And later Carl Sagan, who could not understand the penchant for thinking a tiny Universe, existing only a few thousand years, with everything explained in a paltry way was superior to the vast expanse of time and space that science has shown.
Dr. Dawkins showed on a visual display that the aspects visible to us of the rainbow were just the tiniest sliver of its wavelengths; calculated to actually stretch all the way out to the orbit of Neptune. Similarly, planets ringing distance suns are imperceptible to us except through the perturbations of their sun as it and the planets affect each other. This brings with it speculations of distant life and other wonders. Unweaving the rainbow has also given us the tool of red or blue shifting of the light spectrum to show us the mind-bending distances between the stars and the ubiquity of scientific laws operating in this rapturous cosmic dance in the Universe.
Turning to his own field, Dawkins showed that what unites the most potent theories, including evolution, is their beauty and compact elegance. "It explains an enormous amount without needing to postulate much." He contrasted evolutionary theory, which is "elegant and satisfying" with the claims of young- Earth creationists, which he deemed "ugly and kitsch." One deals with evidence and the other is from authority. Furthermore, the popular but controversial author of such books as The Blind Watchmaker and The Selfish Gene said that "Creationism is not even a theory. It explains nothing, for it needs to assume that which it explains." He spoke of how all the complexity, adaptedness, and diversity of life follows from the fact of heredity, with variety emerging from copying imperfections in self-copying entities, making a recipe for darwinian natural selection and evolution.
Dawkins showed many examples of images culled from creationist subject matter. Also their common practice of using of statements by scientists out of context to erroneously paint an anti-evolutionary view from them was depicted. A quote from Dobzhansky, for example, was shown in a creationist tract where he seems to undercut evolution until you see the full text, conveniently omitted in said tract.
He spoke of how an understanding of genetics helps to explain death, aging and change in the individual and life in general. Genes have effects at different times; ones that give rise to deleterious effects abiding in bodies that survive longer, pass on their effects later as opposed to ones that are selected against by passing them on too soon in an organism. He contrasted again and again the differences between the evolutionary view of harshness, death, imperfection, organisms in an arms race of survival, co-evolving to pass on their genes, and the chisel of natural selection sculpting organisms with the creationist view. The latter with comforting but banal images of eternal life, peaceful harmony and immutable beings.
He spent some time on how the imperfections of organisms were more revealing, "...not what you would find if life had been Designed." Some examples given in word and picture were of the flatfish with grossly distorted skull, having evolved from an upright position to bottom dwelling existence; the eye moving around "Picasso fashion" so that both were on one side. The male testes was another, where migration of them to their current position caused an extreme elongation of the uretheter as it looped around other structures before getting to the kidney. The laryngeal nerves that extend into the chest, then reroute around a main blood vessel before going back up was another un-engineered example as was the vertebrate eye which Dawkins demonstrated was actually backwards wired, creating the "blind spot." The eye evolved many times independently and in not all organisms was this "design flaw" in effect. Correcting these oddities where they presented no real harm would have been "too much upheaval for natural selection" but should have posed no problem, Dawkins maintained, for an Intelligent Designer.
He spoke of convergent and divergent evolution where entities, in the former, who adopt the same lifestyle as relatively unrelated species, come to look and behave much the same, whereas populations that diverge, even when closely related, come to have dissimilar appearance, adapted as they are to a different environment via evolutionary change. As to co-evolution, Dawkins said that since predator and prey continually escalate in the arms race, instead of one neatly consuming the other, the "Creator must enjoy spectator sports."
Dr. Dawkins talked of deep time, and by analogy, asked us to think of the history of Earth compressed to the span between his chest and his fingertip on his extended arm. The chief distance being in the simplest forms of life; the dinosaurs being at about the palm and humankind rising not until the fingertip. As further perspective on our insignificance in geological time he mentioned that all of the productions of human civilization would be as the dust from one file stroke of the fingernail.
He spoke of the many mass extinctions, with their reflowering of life; each time giving rise to radiations of beings to inhabit each new environmental niche on the changing planet. Also the myriad examples of blind catastrophes that wiped out over 99% of the biota, no matter how well adapted was mentioned and we too would prey to this one day.
In the Q&A portion, Dawkins responded to queries ranging from his use of different theories of life's origins in his different books to the ethics of controlling the genetic destiny of one's progeny if/when that becomes possible. One of our group members posited a question to him on how the effects of evolution on isolated populations might effect humankind if we become space-faring. Another challenging one dealt with the evolutionary reason for homosexuality. One interesting point in response was that a gene's effect is not petrified but expresses itself differently over time and in new environments; an advantageous gene becoming disadventageous later.
He expressed his view that the communication of science, to shrink the gap between the scientist and the lay public in understanding its principles, is among the main challenges in the next 50 years, in answer to a question on that.
Dawkins, in talking of how our species was able to transcend the limitations of existing only to pass on our genes (allowing us to follow other edifying persuits), he quoted Steven Pinker in the idea of following one's own will: "If my selfish gene's don't like it, they can go jump in the lake!"
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>From C. Bajema
Richard Dawkins spoke to an overflow crowd at Grand Valley State University, Allendale MI on Monday Nov 11, 1999. Approximately 550 students, faculty and citizens from the west Michigan packed the 540 seat auditorium and an additional 125 individuals saw and heard his lecture via remote feed to another auditorium.
He presented his powerpoint illustrated lecture on "Science, Delusion and the Appetite for Wonder," the first half of which was based on his 1998 book "Unweaving the Rainbow." The second half of his lecture dealt with the creation-evolution controversy. He did an excellent job of presenting the case for the simplicity and elegance of adaptive evolution by selection theory and summarizing the case for why the scientific evidence supports evolution and contradicts creationist claims. Professor Dawkins dealt effectively with a number of questions in the question-answer period. The questions covered such topics as What are the current trends in human evolution? What do you think of the new eugenics? what is the scientific meaning of life? and why is Richard Dawkins opposed to living a Darwinian life in a Darwinian world? (paraphrases of questions) Professor Dawkins responded to a wide range of questions when he attended a science and religion seminar group and when he attended a meeting of biology students and faculty during the afternoon before his Monday evening lecture. Numerous students and faculty who attended these question and answer sessions have told me how much they enjoyed both Richard Dawkins' lecture and his answers to the numerous questions they raised in the seminar and biology student meeting during the afternoon before the lecture. The students and staff of any university that invites Richard Dawkins to speak are in for a real intellectual treat. John Catalono--thanks for maintaining the World-of-Dawkins website and putting me in contact with Royce Carlton (email: info@roycecarlton.com), Dawkins' lecture agent. Carl Jay Bajema (email: Bajemacj@gvsu.edu) Professor of Biology Grand Valley State University Allendale MI 49401 ----------------------------------------------------------------
>From J. Soto
Richard Dawkins lecture at Grand Valley State University (Allendale) last Monday October 11 was packed. The auditorium was so full that they had to bring in folding chairs and even then, some people ended up sitting on the floor!
Dawkins started his lecture by mentioning how back in 1976 some people were distressed by his book "The Selfish Gene". One of them was his publisher's editor, since he didn't know how people would react to the book, another a girl who thought that life was purposeless. This is also the material found in the preface of his book "Unweaving the Rainbow". The pace of his lecture was nice, but I couldn't keep up with some of the information in the slides that he was presenting.
Dawkins said that the theme for his talk was Poetic Beauty. A poet can inspire from science, not degrade from it. He described how Isaac Newton was able to show that light from the sun is actually the sum of all the colors of the rainbow (spectrum), and how some philosophers contemporary to Newton criticized this because they thought that Newton had converted an object of awe into a cold description of a physical process. Very importantly, Dawkins pointed out, that is not necessarily the case. Even if we know the physical explanation for a phenomenon, we may still get excited about its beauty because it is inherently appealing to our senses. I can relate this feeling to an appreciation of a rainbow, thunder, a chemical reaction, the flight of a plane, etc.
In the process of describing the spectrum of white light, he said how some people thought that it was going to be impossible to determine the composition of stars, given their long distances from Earth. As we know, given enough time, some new technique can be developed to overcome this problem. So eventually the Fraunhofer lines were discovered and they could be used to determine a large amount of physical information of the stars, such as composition. He admitted that he was not able to explain the Fraunhofer lines since, in his own words, "Evolutionary speaking, I wasn't made to understand quantum chemistry". This topic lead to talking about how white light is only a tiny section of the electromagnetic spectrum. He then proceeded talk about big numbers (distances in the universe) and how our brain is incapable of comprehending the meaning of such large numbers. Dawkins then focused on the fact that planets have been found around other stars, and how this was accomplished: by studying the spectra of the main star from these 'Solar Systems' whence the Fraunhofer lines shifted back and forth as the system 'wobbled' due to the presence of the massive planets. As he pointed out, unweaving the rainbow again we were able to learn about 'Solar Systems'.
He proceeded to describe some scientists/philosophers in history, particularly from the 19th century, who were involve in the original philosophical discussions and discoveries which slowly built the foundation to the Theory of Evolution.
What makes a theory beautiful is the simplicity of what it postulates. Thus for evolution:
Theory explains /theory postulates = Life's complexity, adaptiveness, diversity / Heredity
Natural selection penalizes sickness and disability, improving the genes of a population as these weak organisms may die prematurely before they can procreate (not always, obviously).
Dawkins gave examples of design of various organs in animals. He said how imperfections in these organs are more revealing about the work of evolution than due to the work of a (perfect) designer. Thus if the argument from creationists is that we were created by an intelligent designer, he/she/it/god could had done better:
1. Mollusks have a complete retina in the back of their eyes; we humans have a blind spot (I personally don't think this blind spot is a big deal and I can see how creationists can almost ignore this 'defect'. I though this was an interesting fact, but a weak argument to be used in the creation/evolution debate.)
2. Laryngeal nerves go from the brain to the larynx, but not directly as they have to go down to the chest (he pointed with his hands near the heart). Giraffes have the same long nerve which travels the neck essentially twice, so why was it that god designed something so poorly?
3. He also described how the testes are not connected in the best (shortest) way to the urethra and thus again show that there is lack of good (optimum) design here.
He admitted that all these things do their job, they work, but emphasized that their non-optimum design does not speak for an intelligent designer behind them.
At the end cards were passed with questions, and due to the large amount of them they were sorted.
Q: Is it possible that man could evolve backwards?
A: "Yes, it's plausible, but there are so many other possibilities that the chances of us going back evolution-wise is practically non-existent."
Q: Why does evolution allow the non-advantageous mutation of homosexually to exist?
A: (I wasn't convinced by this answer; he may have tried to come up with an answer on the spot(?).) "Long time ago men went hunting, women were left in the village. Some men, not so capable for the hunt, were left behind with the women to help in other needed chores that men were still more capable of doing. Eventually with time these 'weaker' men may have developed some feminization...." (Oooh, no!!!, the rationalization was so bad, I lost interest in paying attention to what he was saying. See, there is evidence of homosexuality in some insects and some 'higher' species, such as chimpanzees, but I'm no expert to discuss this in detail.)
Q: (Relates to a comment by Dawkins during his lecture of "...how tragic it was that in 1936 the Tasmanian dog was driven to extinction"). Why do you express such sentiment about the extinction of the Tasmanian dog?
A: "Because I love, I cry, I feel, I'm a human being.....I'm sentimental"
The following question was, I thought, a message to us skeptics and also to science at large:
Q: What do you think is one of the major obstacles that science will have to deal in the next 50 years?
A: (I though he might say funding, but he carefully thought about it and mentioned how he was surprised at the increasing number of people believing in pseudo-sciences and that this was due to the lack of understanding of the explanation of the pseudo-sciences vs. an understanding of science. In other words, the comfort brought to people by the pseudo-sciences 'preachings' outweighs any need to even think if there is any logic behind the belief. In short he said that what science ought to do, and it won't be easy is -->) "Communication with and education of the public about what science is, and how it has helped us to better understand our universe, live better and have more fulfilling lives."
Overall, I was pleased with his talk. I found him a likable person, admitting his imperfection and his ignorance (except maybe in the question of homosexuality). I have the feeling that he is a person who not only tries to understand life but also experiences its beauty in his very own poetic way. Jorge |
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