TW: Have remarked before on the Texas Board of Education's influence on national education curriculum. Personally their influence does not give me much comfort.
From Floyd Norris at NYT:
"The Texas Board of Education voted today to make changes sought by conservatives in the state’s social sciences curriculum, James C. McKinley reports.
In economics, the revisions add Milton Friedman and Friedrich von Hayek, two champions of free-market economic theory, among the usual list of economists to be studied, like Adam Smith, Karl Marx and John Maynard Keynes. They also replaced the word “capitalism” throughout their texts with the “free-enterprise system.”
“Let’s face it, capitalism does have a negative connotation,” said one conservative member, Teri Leo. “You know, ‘capitalist pig!’ ”
The highlight of the article, at least for me, was this challenge from a board member:
“I reject the notion by the left of a constitutional separation of church and state,” said David Bradley, a conservative from Beaumont who works in real estate. “I have $1,000 for the charity of your choice if you can find it in the Constitution.”
Then I learned that one man that my high school teachers spoke well of was no longer appreciated:
Cynthia Dunbar, a lawyer from Richmond who is a strict constitutionalist and thinks the nation was founded on Christian beliefs, managed to cut Thomas Jefferson from a list of figures whose writings inspired revolutions in the late 18th century and 19th century, replacing him with St. Thomas Aquinas, John Calvin and William Blackstone. (Jefferson is not well-liked among the conservatives on the board because he coined the term “separation between church and state.”)
“The Enlightenment was not the only philosophy on which these revolutions were based,” Ms. Dunbar said."http://norris.blogs.nytimes.com/2010/03/12/is-capitalism-a-bad-word/
Showing posts with label Evolution. Show all posts
Showing posts with label Evolution. Show all posts
Saturday, March 13, 2010
Sunday, November 8, 2009
Creationism Makes For Strange Bedfellows
TW: Just sayin'...
From Andrew Sullivan:
"It's on the rise:
'Unlike in the West, creationist beliefs are not associated in the Muslim world with religious fundamentalism, but instead are often espoused by members of the mainstream intellectual elite - liberals, by their own lights, who see the expansive, scientific-sounding claims of creationism as tracing a middle way between the guidance of religion and the promise of modern science. Critics of the movement fear that this makes it more likely that creationism will find its way into policies there, especially when the theory of evolution is portrayed among Muslim thinkers, as it often is, as an instrument of Western intellectual hegemony.'
Drake Bennett points a paradoxical reason for that rise:
'[T]hose places where the theory of evolution is seen more warily, the fact that there is a creationist debate at all can be seen as a sort of progress - a symptom at the very least of a newfound interest in science. In the most conservative parts of the Muslim world, creationism isn't a political or philosophical force because it doesn't need to be - there aren't enough people who believe in evolution, or have even been exposed to it, to require a counter-doctrine.
The rise of Islamic creationism, then, may be a sign that more of the Muslim world is at least wrestling with the idea of evolution, and more broadly with the power of scientific explanations. Much though it may alarm Western scientists, creationist thought may offer people an acceptable point of entry into a science-driven world.' "
http://andrewsullivan.theatlantic.com/the_daily_dish/2009/11/creationism-in-the-islamic-world.html#more
From Andrew Sullivan:
"It's on the rise:
'Unlike in the West, creationist beliefs are not associated in the Muslim world with religious fundamentalism, but instead are often espoused by members of the mainstream intellectual elite - liberals, by their own lights, who see the expansive, scientific-sounding claims of creationism as tracing a middle way between the guidance of religion and the promise of modern science. Critics of the movement fear that this makes it more likely that creationism will find its way into policies there, especially when the theory of evolution is portrayed among Muslim thinkers, as it often is, as an instrument of Western intellectual hegemony.'
Drake Bennett points a paradoxical reason for that rise:
'[T]hose places where the theory of evolution is seen more warily, the fact that there is a creationist debate at all can be seen as a sort of progress - a symptom at the very least of a newfound interest in science. In the most conservative parts of the Muslim world, creationism isn't a political or philosophical force because it doesn't need to be - there aren't enough people who believe in evolution, or have even been exposed to it, to require a counter-doctrine.
The rise of Islamic creationism, then, may be a sign that more of the Muslim world is at least wrestling with the idea of evolution, and more broadly with the power of scientific explanations. Much though it may alarm Western scientists, creationist thought may offer people an acceptable point of entry into a science-driven world.' "
http://andrewsullivan.theatlantic.com/the_daily_dish/2009/11/creationism-in-the-islamic-world.html#more
Saturday, July 18, 2009
Come On Folks
Thursday, July 9, 2009
What Do Scientists Think?
Monday, March 30, 2009
Texas Fumbles Around With Evolution
TW: Have posted on the Texas state education board's efforts to inject creationism into our nation's science curricula. The board issued a muddled ruling last week falling short of explicitly pushing creationism into science classes but leaving many doors open by which local entities can do so on their own. I especially like Hitchens final paragraph. If one is going to open things up for comparative debate why should the Christian Genesis explanation be the only alternative (personally I would insist upon the Druids getting some level of recognition).
From Chris Hitchens in Newsweek:
"...last week Texas and schoolbooks meant something else altogether when the state Board of Education, in a muddled decision, rejected a state science curriculum that required teachers to discuss the "strengths and weaknesses" of the theory of evolution. Instead, the board allowed "all sides" of scientific theories to be taught.
...let's "be honest with the kids," as Dr. Don McLeroy[chief creationist tout], the chairman of the Texas education board, wants us to be. The problem is that he is urging that the argument be taught, not in a history or in a civics class, but in a biology class. And one of his supporters on the board, Ken Mercer, has said that evolution is disproved by the absence of any transitional forms between dogs and cats. If any state in the American union gave equal time in science class to such claims, it would certainly make itself unique in the world (perhaps no shame in that). But it would also set a precedent for the sharing of the astronomy period with the teaching of astrology, or indeed of equal time as between chemistry and alchemy. Less boring perhaps, but also much less scientific and less educational.
The Texas anti-Darwin stalwarts also might want to beware of what they wish for. The last times that evangelical Protestantism won cultural/ political victories—by banning the sale of alcohol, prohibiting the teaching of evolution and restricting immigration from Catholic countries—the triumphs all turned out to be Pyrrhic. There are some successes that are simply not survivable. If by any combination of luck and coincidence any religious coalition ever did succeed in criminalizing abortion, say, or mandating school prayer, it would swiftly become the victim of a backlash that would make it rue the day. This will apply with redoubled force to any initiative that asks the United States to trade its hard-won scientific preeminence against its private and unofficial pieties. This country is so constituted that no one group, and certainly no one confessional group, is able to dictate its own standards to the others. There are days when I almost wish the fundamentalists could get their own way, just so that they would find out what would happen to them.
...It's not just that the overwhelming majority of scientists are now convinced that evolution is inscribed in the fossil record and in the lineaments of molecular biology. It is more that evolutionists will say in advance which evidence, if found, would refute them and force them to reconsider. ("Rabbit fossils in the pre-Cambrian layer" was, I seem to remember, the response of Prof. J.B.S. Haldane.) Try asking an "intelligent design" advocate to stipulate upfront what would constitute refutation of his world view and you will easily see the difference between the scientific method and the pseudoscientific one.
But that is just my opinion. And I certainly do not want it said that my side denies a hearing to the opposing one. In the spirit of compromise, then, I propose the following. First, let the school debating societies restage the wonderful set-piece real-life dramas of Oxford and Dayton, Tenn. Let time also be set aside, in our increasingly multiethnic and multicultural school system, for children to be taught the huge variety of creation stories, from the Hindu to the Muslim to the Australian Aboriginal. This is always interesting (and it can't be, can it, that the Texas board holdouts think that only Genesis ought to be so honored?). Second, we can surely demand that the principle of "strengths and weaknesses" will be applied evenly. If any church in Texas receives a tax exemption, or if any religious institution is the beneficiary of any subvention from the Office of Faith-Based and Neighborhood Partnerships, we must be assured that it will devote a portion of its time to laying bare the "strengths and weaknesses" of the religious world view, and also to teaching the works of Voltaire, David Hume, Benedict de Spinoza, Thomas Paine and Thomas Jefferson. This is America. Let a hundred flowers bloom, and a thousand schools of thought contend. We may one day have cause to be grateful to the Texas Board of Education for lighting a candle that cannot be put out."
http://www.newsweek.com/id/191400/page/1
From Chris Hitchens in Newsweek:
"...last week Texas and schoolbooks meant something else altogether when the state Board of Education, in a muddled decision, rejected a state science curriculum that required teachers to discuss the "strengths and weaknesses" of the theory of evolution. Instead, the board allowed "all sides" of scientific theories to be taught.
...let's "be honest with the kids," as Dr. Don McLeroy[chief creationist tout], the chairman of the Texas education board, wants us to be. The problem is that he is urging that the argument be taught, not in a history or in a civics class, but in a biology class. And one of his supporters on the board, Ken Mercer, has said that evolution is disproved by the absence of any transitional forms between dogs and cats. If any state in the American union gave equal time in science class to such claims, it would certainly make itself unique in the world (perhaps no shame in that). But it would also set a precedent for the sharing of the astronomy period with the teaching of astrology, or indeed of equal time as between chemistry and alchemy. Less boring perhaps, but also much less scientific and less educational.
The Texas anti-Darwin stalwarts also might want to beware of what they wish for. The last times that evangelical Protestantism won cultural/ political victories—by banning the sale of alcohol, prohibiting the teaching of evolution and restricting immigration from Catholic countries—the triumphs all turned out to be Pyrrhic. There are some successes that are simply not survivable. If by any combination of luck and coincidence any religious coalition ever did succeed in criminalizing abortion, say, or mandating school prayer, it would swiftly become the victim of a backlash that would make it rue the day. This will apply with redoubled force to any initiative that asks the United States to trade its hard-won scientific preeminence against its private and unofficial pieties. This country is so constituted that no one group, and certainly no one confessional group, is able to dictate its own standards to the others. There are days when I almost wish the fundamentalists could get their own way, just so that they would find out what would happen to them.
...It's not just that the overwhelming majority of scientists are now convinced that evolution is inscribed in the fossil record and in the lineaments of molecular biology. It is more that evolutionists will say in advance which evidence, if found, would refute them and force them to reconsider. ("Rabbit fossils in the pre-Cambrian layer" was, I seem to remember, the response of Prof. J.B.S. Haldane.) Try asking an "intelligent design" advocate to stipulate upfront what would constitute refutation of his world view and you will easily see the difference between the scientific method and the pseudoscientific one.
But that is just my opinion. And I certainly do not want it said that my side denies a hearing to the opposing one. In the spirit of compromise, then, I propose the following. First, let the school debating societies restage the wonderful set-piece real-life dramas of Oxford and Dayton, Tenn. Let time also be set aside, in our increasingly multiethnic and multicultural school system, for children to be taught the huge variety of creation stories, from the Hindu to the Muslim to the Australian Aboriginal. This is always interesting (and it can't be, can it, that the Texas board holdouts think that only Genesis ought to be so honored?). Second, we can surely demand that the principle of "strengths and weaknesses" will be applied evenly. If any church in Texas receives a tax exemption, or if any religious institution is the beneficiary of any subvention from the Office of Faith-Based and Neighborhood Partnerships, we must be assured that it will devote a portion of its time to laying bare the "strengths and weaknesses" of the religious world view, and also to teaching the works of Voltaire, David Hume, Benedict de Spinoza, Thomas Paine and Thomas Jefferson. This is America. Let a hundred flowers bloom, and a thousand schools of thought contend. We may one day have cause to be grateful to the Texas Board of Education for lighting a candle that cannot be put out."
http://www.newsweek.com/id/191400/page/1
Wednesday, February 18, 2009
Further Proof That We Descended From Apes
From Mark Thoma and Scientific American:
"Monkeys Hate Others' Bonuses, Too, Scientific American: Even monkeys know when they’re getting a bad deal, said primatologist Frans de Waal... Give two side-by-side monkeys a piece of cucumber for performing a simple task and there’s no problem. But if one sees his neighbor get a more desirable grape—“now grapes are far better than cucumber and the monkeys know that”—for doing the same thing, “they become agitated. They don’t like this experiment anymore, even though they get exactly the same food as before. But the partner is now getting grapes. And if you give the partner a grape without any task, then they really don’t like it anymore. So this is, I usually call it an egocentric sense of fairness, it’s like resentment or envy. It’s very similar actually to the response that we have currently to Wall Street bonuses. I always say we live in Cucumberland and they live in Grapeland, basically.”
"Monkeys Hate Others' Bonuses, Too, Scientific American: Even monkeys know when they’re getting a bad deal, said primatologist Frans de Waal... Give two side-by-side monkeys a piece of cucumber for performing a simple task and there’s no problem. But if one sees his neighbor get a more desirable grape—“now grapes are far better than cucumber and the monkeys know that”—for doing the same thing, “they become agitated. They don’t like this experiment anymore, even though they get exactly the same food as before. But the partner is now getting grapes. And if you give the partner a grape without any task, then they really don’t like it anymore. So this is, I usually call it an egocentric sense of fairness, it’s like resentment or envy. It’s very similar actually to the response that we have currently to Wall Street bonuses. I always say we live in Cucumberland and they live in Grapeland, basically.”
Monday, February 16, 2009
Never-ending War On Empirical Science
TW: Perhaps you know how textbook publishing is driven strongly by the requirements of the big states such as New York, California and Texas. A small state can define weird requirements and a publisher may ignore them and risk that states business. The publishers are generally unwilling to ignore the large states, however, as to do so risks too much business.
Hence the perennial fights in the larger states over textbook definitions drive the entire country's textbook criteria. The latest is the dreaded creationism tripe being foisted upon us by cultural conservatives in Texas. If the cultural conservatives have done anything effectively over the past 30 years, it has been insinuating themselves into local government including school boards. In this case the cultural conservatives are near control of the TX state board responsible for textbooks.
From Int'l Herald Tribune:
"...Even as federal courts have banned the teaching of creationism and intelligent design in biology courses, social conservatives have gained 7 of 15 seats on the Texas board in recent years, and they enjoy the strong support of Governor Rick Perry, a Republican[TW: this guy very much sees himself as POTUS material btw although I suspect anyone with "former TX governor' on his resume will struggle for awhile in POTUS contests].
The chairman of the board, Dr. Don McLeroy, a dentist from central Texas, pushed in 2003 for a more skeptical version of evolution to be presented in the state's textbooks but could not get a majority to vote with him. McLeroy has said he does not believe in Darwin's theory and thinks that Earth's appearance is a recent geologic event, thousands of years old, not 4.5 billion as scientists contend.
...Stephen Meyer, a specialist in the history of science and a director at the Discovery Institute["intelligent" design advocacy organization] , denied that the group was advocating a biblical version of creation. Rather, he said, it is fighting for academic freedom and against what it sees as a fanatical loyalty to Darwin among biologists, akin to a secular religion
...But several biologists who appeared in the hearing room said the objections raised by Meyer and some board members were baseless. The majority of evidence collected over the last 150 years supports Darwin, and very few dissenting opinions have survived a review by scientists.
"Every single thing they are representing as a weakness is a misrepresentation of science," said David Hillis, a professor of biology at the University of Texas. "These are science skeptics. These are people with religious and political agendas."
http://www.iht.com/articles/2009/01/22/america/texas.1-413294.php
Hence the perennial fights in the larger states over textbook definitions drive the entire country's textbook criteria. The latest is the dreaded creationism tripe being foisted upon us by cultural conservatives in Texas. If the cultural conservatives have done anything effectively over the past 30 years, it has been insinuating themselves into local government including school boards. In this case the cultural conservatives are near control of the TX state board responsible for textbooks.
From Int'l Herald Tribune:
"...Even as federal courts have banned the teaching of creationism and intelligent design in biology courses, social conservatives have gained 7 of 15 seats on the Texas board in recent years, and they enjoy the strong support of Governor Rick Perry, a Republican[TW: this guy very much sees himself as POTUS material btw although I suspect anyone with "former TX governor' on his resume will struggle for awhile in POTUS contests].
The chairman of the board, Dr. Don McLeroy, a dentist from central Texas, pushed in 2003 for a more skeptical version of evolution to be presented in the state's textbooks but could not get a majority to vote with him. McLeroy has said he does not believe in Darwin's theory and thinks that Earth's appearance is a recent geologic event, thousands of years old, not 4.5 billion as scientists contend.
...Stephen Meyer, a specialist in the history of science and a director at the Discovery Institute["intelligent" design advocacy organization] , denied that the group was advocating a biblical version of creation. Rather, he said, it is fighting for academic freedom and against what it sees as a fanatical loyalty to Darwin among biologists, akin to a secular religion
...But several biologists who appeared in the hearing room said the objections raised by Meyer and some board members were baseless. The majority of evidence collected over the last 150 years supports Darwin, and very few dissenting opinions have survived a review by scientists.
"Every single thing they are representing as a weakness is a misrepresentation of science," said David Hillis, a professor of biology at the University of Texas. "These are science skeptics. These are people with religious and political agendas."
http://www.iht.com/articles/2009/01/22/america/texas.1-413294.php
Thursday, February 12, 2009
Darwin (Part 2): The Impact Beyond Biology
TW: Continuing excerpts from Economist, these focus on how evolutionary thought impacts a wide range of other scientific pursuits.
From the Economist:
"...many aspects of modern science could not work without accepting evolution. Darwin’s ideas touch every corner of biology and medicine. They have also had an impact farther afield, in areas from art to politics. And their impact has been practical as well as theoretical. Both software engineers and drug developers, for example, often make use of evolutionary thinking when designing their products.
Economics, too, may be helped by Darwin. Ideas about “rational” economic man are being overturned by new ones from a discipline called behavioural economics. Rather than assuming that individuals faced with economic decisions will comport themselves in what “classical” economists regard as a rational manner—ie, to maximise their future wealth—behavioural economics tries to study how real people actually behave.
What is surprising is the degree to which human beings are not rational, and how the reasons for this are likely to involve Darwinian explanations. Take, for example, a phenomenon called the endowment effect, which is the tendency most people have to value objects they already own more highly than similar ones they have never owned—and, consequently, to be more reluctant to trade them than a classical economist would predict.
Because this effect has been observed in three primate species, most recently in a study of chimpanzees, it suggests this effect has evolutionary roots. Its strength seems to relate to the evolutionary salience of the item in question. People may be reluctant to trade goods related to food and mating because in the recent evolutionary past it meant parting with a known object in exchange for an uncertain proposition.
Another example of economic behaviour that may have deep evolutionary roots is the “herd” mentality that contributes to financial bubbles. In the past, copying the neighbours would have been helpful—in order to avoid danger or to find food. In today’s financial systems, however, it can create instability. The instinct to follow the herd can be rationalised as rational, so to speak, since everybody benefits in the short term by forcing the price up. But it does not look so rational when the instability is exposed by an external shock and the market crashes. In fact, at least part of what seems to be going on is that everyone instinctively feels compelled to copy the others, rather than making an independent assessment of the situation.
Whether the mystery is why people are so averse to risk, unable to estimate the time needed for a given task, or give different answers to the same question depending on how it is framed, there is a fair chance that the explanation will, at some point, involve evolution. To understand human behaviour properly, the world needs Darwin. Some have said it is the best idea that anyone ever had. If it isn’t, it certainly comes close.
Despite so much evidence, evolution remains difficult to accept because it implies everything living is largely accidental. Stephen Jay Gould, an American evolutionary biologist, who died in 2002, argued that misunderstandings about Darwinism were rife not because the theory is difficult to understand but because people actively avoid trying to understand it. He thought a misunderstanding about progress was the problem.
People are comforted by the idea of a designed and harmonious natural world, with themselves at the top. It is hard to accept that such harmony has arisen as an accidental consequence of a brutal system with no principles beside the one that every individual is striving for reproductive success. It is depressing to think that life is purposeless and that evolution has no higher destination"
From the Economist:
"...many aspects of modern science could not work without accepting evolution. Darwin’s ideas touch every corner of biology and medicine. They have also had an impact farther afield, in areas from art to politics. And their impact has been practical as well as theoretical. Both software engineers and drug developers, for example, often make use of evolutionary thinking when designing their products.
Economics, too, may be helped by Darwin. Ideas about “rational” economic man are being overturned by new ones from a discipline called behavioural economics. Rather than assuming that individuals faced with economic decisions will comport themselves in what “classical” economists regard as a rational manner—ie, to maximise their future wealth—behavioural economics tries to study how real people actually behave.
What is surprising is the degree to which human beings are not rational, and how the reasons for this are likely to involve Darwinian explanations. Take, for example, a phenomenon called the endowment effect, which is the tendency most people have to value objects they already own more highly than similar ones they have never owned—and, consequently, to be more reluctant to trade them than a classical economist would predict.
Because this effect has been observed in three primate species, most recently in a study of chimpanzees, it suggests this effect has evolutionary roots. Its strength seems to relate to the evolutionary salience of the item in question. People may be reluctant to trade goods related to food and mating because in the recent evolutionary past it meant parting with a known object in exchange for an uncertain proposition.
Another example of economic behaviour that may have deep evolutionary roots is the “herd” mentality that contributes to financial bubbles. In the past, copying the neighbours would have been helpful—in order to avoid danger or to find food. In today’s financial systems, however, it can create instability. The instinct to follow the herd can be rationalised as rational, so to speak, since everybody benefits in the short term by forcing the price up. But it does not look so rational when the instability is exposed by an external shock and the market crashes. In fact, at least part of what seems to be going on is that everyone instinctively feels compelled to copy the others, rather than making an independent assessment of the situation.
Whether the mystery is why people are so averse to risk, unable to estimate the time needed for a given task, or give different answers to the same question depending on how it is framed, there is a fair chance that the explanation will, at some point, involve evolution. To understand human behaviour properly, the world needs Darwin. Some have said it is the best idea that anyone ever had. If it isn’t, it certainly comes close.
Despite so much evidence, evolution remains difficult to accept because it implies everything living is largely accidental. Stephen Jay Gould, an American evolutionary biologist, who died in 2002, argued that misunderstandings about Darwinism were rife not because the theory is difficult to understand but because people actively avoid trying to understand it. He thought a misunderstanding about progress was the problem.
People are comforted by the idea of a designed and harmonious natural world, with themselves at the top. It is hard to accept that such harmony has arisen as an accidental consequence of a brutal system with no principles beside the one that every individual is striving for reproductive success. It is depressing to think that life is purposeless and that evolution has no higher destination"
Wednesday, February 11, 2009
In Honor Of Darwin's 200th Anniversary (Part1)
TW: Charles Darwin was born 200 years ago today. To mark the occasion I pulled some quotes out of Economist's piece that recognized the occasion. I do so as evolution is one of those about which we all (I hope) learned about in school years or decades ago but likely do not really recall many details. When it is on our minds it is likely within the context of someone hawking some form of creationism. There are really two primary groups of nations which have a serious problem with Darwin, countries where Islam predominates and the U.S. of A. The Economist managed to get through their entire piece without mentioning creationism, no doubt on purpose and a flick of the nose to those who feel obligated to report the unsubstantiated in the pursuit of balance.
From the Economist:
"...Since the beginning of time, people who have thought about such things have seen these marvels as examples of the wisdom of God; even as evidence for his existence. But 200 years ago, on February 12th 1809, a man was born who would challenge all that. The book that issued the challenge, published half a century later, in 1859, offered a radical new view of the living world and, most radical of all, of humanity’s origins. The man was Charles Robert Darwin. The book was “On the Origin of Species”. And the challenge was the theory of evolution by natural selection.
...of all the discoveries of 19th- and early 20th-century science—invisible atoms, infinite space, the inconstancy of time and the mutability of matter—only evolution has failed to find general acceptance outside the scientific world. Few laymen would claim they did not believe Einstein. Yet many seem proud not to believe Darwin.
...The idea of evolution by natural selection is not hard to grasp. It just requires connecting some uncontentious propositions. These are that organisms vary from one another, even within a species, and that new variation can arise from time to time; that some of this variation is passed from parent to offspring; and that more individuals are born than can exist in the available space (or be sustained by the available resources). The consequence is what Darwin described in his book as a “struggle for existence”. The weakest are eliminated in this struggle. The fit survive. The survivors pass on their traits to their offspring. Over enough time, this differential transmission of characters will lead to the formation of a new species.
...Darwin’s theory explained why species were so well adapted to their environment and how new species would form. It suggested that all living things were related, from the beetle to the lotus, and that everything descended ultimately from a single common ancestor. Evolution thus removed the need for divine explanations of diversity and, along with evidence emerging at that time of the extreme age of the Earth, it further suggested that the wider universe might also owe nothing to divine intervention and everything to natural laws. Darwin understood all of this and was greatly troubled."
From the Economist:
"...Since the beginning of time, people who have thought about such things have seen these marvels as examples of the wisdom of God; even as evidence for his existence. But 200 years ago, on February 12th 1809, a man was born who would challenge all that. The book that issued the challenge, published half a century later, in 1859, offered a radical new view of the living world and, most radical of all, of humanity’s origins. The man was Charles Robert Darwin. The book was “On the Origin of Species”. And the challenge was the theory of evolution by natural selection.
...of all the discoveries of 19th- and early 20th-century science—invisible atoms, infinite space, the inconstancy of time and the mutability of matter—only evolution has failed to find general acceptance outside the scientific world. Few laymen would claim they did not believe Einstein. Yet many seem proud not to believe Darwin.
...The idea of evolution by natural selection is not hard to grasp. It just requires connecting some uncontentious propositions. These are that organisms vary from one another, even within a species, and that new variation can arise from time to time; that some of this variation is passed from parent to offspring; and that more individuals are born than can exist in the available space (or be sustained by the available resources). The consequence is what Darwin described in his book as a “struggle for existence”. The weakest are eliminated in this struggle. The fit survive. The survivors pass on their traits to their offspring. Over enough time, this differential transmission of characters will lead to the formation of a new species.
...Darwin’s theory explained why species were so well adapted to their environment and how new species would form. It suggested that all living things were related, from the beetle to the lotus, and that everything descended ultimately from a single common ancestor. Evolution thus removed the need for divine explanations of diversity and, along with evidence emerging at that time of the extreme age of the Earth, it further suggested that the wider universe might also owe nothing to divine intervention and everything to natural laws. Darwin understood all of this and was greatly troubled."
Sunday, February 8, 2009
Right Above the Turks
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TW: Polls are by Pew Research. Scientists do not know everything. But they do more know than many, especially about things like the scientific method, reason, logic etc.