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Weiye Loh

Skepticblog » A Creationist Challenge - 0 views

  • The commenter starts with some ad hominems, asserting that my post is biased and emotional. They provide no evidence or argument to support this assertion. And of course they don’t even attempt to counter any of the arguments I laid out. They then follow up with an argument from authority – he can link to a PhD creationist – so there.
  • The article that the commenter links to is by Henry M. Morris, founder for the Institute for Creation Research (ICR) – a young-earth creationist organization. Morris was (he died in 2006 following a stroke) a PhD – in civil engineering. This point is irrelevant to his actual arguments. I bring it up only to put the commenter’s argument from authority into perspective. No disrespect to engineers – but they are not biologists. They have no expertise relevant to the question of evolution – no more than my MD. So let’s stick to the arguments themselves.
  • The article by Morris is an overview of so-called Creation Science, of which Morris was a major architect. The arguments he presents are all old creationist canards, long deconstructed by scientists. In fact I address many of them in my original refutation. Creationists generally are not very original – they recycle old arguments endlessly, regardless of how many times they have been destroyed.
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  • Morris also makes heavy use of the “taking a quote out of context” strategy favored by creationists. His quotes are often from secondary sources and are incomplete.
  • A more scholarly (i.e. intellectually honest) approach would be to cite actual evidence to support a point. If you are going to cite an authority, then make sure the quote is relevant, in context, and complete.
  • And even better, cite a number of sources to show that the opinion is representative. Rather we get single, partial, and often outdated quotes without context.
  • (nature is not, it turns out, cleanly divided into “kinds”, which have no operational definition). He also repeats this canard: Such variation is often called microevolution, and these minor horizontal (or downward) changes occur fairly often, but such changes are not true “vertical” evolution. This is the microevolution/macroevolution false dichotomy. It is only “often called” this by creationists – not by actual evolutionary scientists. There is no theoretical or empirical division between macro and micro evolution. There is just evolution, which can result in the full spectrum of change from minor tweaks to major changes.
  • Morris wonders why there are no “dats” – dog-cat transitional species. He misses the hierarchical nature of evolution. As evolution proceeds, and creatures develop a greater and greater evolutionary history behind them, they increasingly are committed to their body plan. This results in a nestled hierarchy of groups – which is reflected in taxonomy (the naming scheme of living things).
  • once our distant ancestors developed the basic body plan of chordates, they were committed to that body plan. Subsequent evolution resulted in variations on that plan, each of which then developed further variations, etc. But evolution cannot go backward, undo evolutionary changes and then proceed down a different path. Once an evolutionary line has developed into a dog, evolution can produce variations on the dog, but it cannot go backwards and produce a cat.
  • Stephen J. Gould described this distinction as the difference between disparity and diversity. Disparity (the degree of morphological difference) actually decreases over evolutionary time, as lineages go extinct and the surviving lineages are committed to fewer and fewer basic body plans. Meanwhile, diversity (the number of variations on a body plan) within groups tends to increase over time.
  • the kind of evolutionary changes that were happening in the past, when species were relatively undifferentiated (compared to contemporary species) is indeed not happening today. Modern multi-cellular life has 600 million years of evolutionary history constraining their future evolution – which was not true of species at the base of the evolutionary tree. But modern species are indeed still evolving.
  • Here is a list of research documenting observed instances of speciation. The list is from 1995, and there are more recent examples to add to the list. Here are some more. And here is a good list with references of more recent cases.
  • Next Morris tries to convince the reader that there is no evidence for evolution in the past, focusing on the fossil record. He repeats the false claim (again, which I already dealt with) that there are no transitional fossils: Even those who believe in rapid evolution recognize that a considerable number of generations would be required for one distinct “kind” to evolve into another more complex kind. There ought, therefore, to be a considerable number of true transitional structures preserved in the fossils — after all, there are billions of non-transitional structures there! But (with the exception of a few very doubtful creatures such as the controversial feathered dinosaurs and the alleged walking whales), they are not there.
  • I deal with this question at length here, pointing out that there are numerous transitional fossils for the evolution of terrestrial vertebrates, mammals, whales, birds, turtles, and yes – humans from ape ancestors. There are many more examples, these are just some of my favorites.
  • Much of what follows (as you can see it takes far more space to correct the lies and distortions of Morris than it did to create them) is classic denialism – misinterpreting the state of the science, and confusing lack of information about the details of evolution with lack of confidence in the fact of evolution. Here are some examples – he quotes Niles Eldridge: “It is a simple ineluctable truth that virtually all members of a biota remain basically stable, with minor fluctuations, throughout their durations. . . .“ So how do evolutionists arrive at their evolutionary trees from fossils of organisms which didn’t change during their durations? Beware the “….” – that means that meaningful parts of the quote are being omitted. I happen to have the book (The Pattern of Evolution) from which Morris mined that particular quote. Here’s the rest of it: (Remember, by “biota” we mean the commonly preserved plants and animals of a particular geological interval, which occupy regions often as large as Roger Tory Peterson’s “eastern” region of North American birds.) And when these systems change – when the older species disappear, and new ones take their place – the change happens relatively abruptly and in lockstep fashion.”
  • Eldridge was one of the authors (with Gould) of punctuated equilibrium theory. This states that, if you look at the fossil record, what we see are species emerging, persisting with little change for a while, and then disappearing from the fossil record. They theorize that most species most of the time are at equilibrium with their environment, and so do not change much. But these periods of equilibrium are punctuated by disequilibrium – periods of change when species will have to migrate, evolve, or go extinct.
  • This does not mean that speciation does not take place. And if you look at the fossil record we see a pattern of descendant species emerging from ancestor species over time – in a nice evolutionary pattern. Morris gives a complete misrepresentation of Eldridge’s point – once again we see intellectual dishonesty in his methods of an astounding degree.
  • Regarding the atheism = religion comment, it reminds me of a great analogy that I first heard on twitter from Evil Eye. (paraphrase) “those that say atheism is a religion, is like saying ‘not collecting stamps’ is a hobby too.”
  • Morris next tackles the genetic evidence, writing: More often is the argument used that similar DNA structures in two different organisms proves common evolutionary ancestry. Neither argument is valid. There is no reason whatever why the Creator could not or would not use the same type of genetic code based on DNA for all His created life forms. This is evidence for intelligent design and creation, not evolution.
  • Here is an excellent summary of the multiple lines of molecular evidence for evolution. Basically, if we look at the sequence of DNA, the variations in trinucleotide codes for amino acids, and amino acids for proteins, and transposons within DNA we see a pattern that can only be explained by evolution (or a mischievous god who chose, for some reason, to make life look exactly as if it had evolved – a non-falsifiable notion).
  • The genetic code is essentially comprised of four letters (ACGT for DNA), and every triplet of three letters equates to a specific amino acid. There are 64 (4^3) possible three letter combinations, and 20 amino acids. A few combinations are used for housekeeping, like a code to indicate where a gene stops, but the rest code for amino acids. There are more combinations than amino acids, so most amino acids are coded for by multiple combinations. This means that a mutation that results in a one-letter change might alter from one code for a particular amino acid to another code for the same amino acid. This is called a silent mutation because it does not result in any change in the resulting protein.
  • It also means that there are very many possible codes for any individual protein. The question is – which codes out of the gazillions of possible codes do we find for each type of protein in different species. If each “kind” were created separately there would not need to be any relationship. Each kind could have it’s own variation, or they could all be identical if they were essentially copied (plus any mutations accruing since creation, which would be minimal). But if life evolved then we would expect that the exact sequence of DNA code would be similar in related species, but progressively different (through silent mutations) over evolutionary time.
  • This is precisely what we find – in every protein we have examined. This pattern is necessary if evolution were true. It cannot be explained by random chance (the probability is absurdly tiny – essentially zero). And it makes no sense from a creationist perspective. This same pattern (a branching hierarchy) emerges when we look at amino acid substitutions in proteins and other aspects of the genetic code.
  • Morris goes for the second law of thermodynamics again – in the exact way that I already addressed. He responds to scientists correctly pointing out that the Earth is an open system, by writing: This naive response to the entropy law is typical of evolutionary dissimulation. While it is true that local order can increase in an open system if certain conditions are met, the fact is that evolution does not meet those conditions. Simply saying that the earth is open to the energy from the sun says nothing about how that raw solar heat is converted into increased complexity in any system, open or closed. The fact is that the best known and most fundamental equation of thermodynamics says that the influx of heat into an open system will increase the entropy of that system, not decrease it. All known cases of decreased entropy (or increased organization) in open systems involve a guiding program of some sort and one or more energy conversion mechanisms.
  • Energy has to be transformed into a usable form in order to do the work necessary to decrease entropy. That’s right. That work is done by life. Plants take solar energy (again – I’m not sure what “raw solar heat” means) and convert it into food. That food fuels the processes of life, which include development and reproduction. Evolution emerges from those processes- therefore the conditions that Morris speaks of are met.
  • But Morris next makes a very confused argument: Evolution has neither of these. Mutations are not “organizing” mechanisms, but disorganizing (in accord with the second law). They are commonly harmful, sometimes neutral, but never beneficial (at least as far as observed mutations are concerned). Natural selection cannot generate order, but can only “sieve out” the disorganizing mutations presented to it, thereby conserving the existing order, but never generating new order.
  • The notion that evolution (as if it’s a thing) needs to use energy is hopelessly confused. Evolution is a process that emerges from the system of life – and life certainly can use solar energy to decrease its entropy, and by extension the entropy of the biosphere. Morris slips into what is often presented as an information argument.  (Yet again – already dealt with. The pattern here is that we are seeing a shuffling around of the same tired creationists arguments.) It is first not true that most mutations are harmful. Many are silent, and many of those that are not silent are not harmful. They may be neutral, they may be a mixed blessing, and their relative benefit vs harm is likely to be situational. They may be fatal. And they also may be simply beneficial.
  • Morris finishes with a long rambling argument that evolution is religion. Evolution is promoted by its practitioners as more than mere science. Evolution is promulgated as an ideology, a secular religion — a full-fledged alternative to Christianity, with meaning and morality . . . . Evolution is a religion. This was true of evolution in the beginning, and it is true of evolution still today. Morris ties evolution to atheism, which, he argues, makes it a religion. This assumes, of course, that atheism is a religion. That depends on how you define atheism and how you define religion – but it is mostly wrong. Atheism is a lack of belief in one particular supernatural claim – that does not qualify it as a religion.
  • But mutations are not “disorganizing” – that does not even make sense. It seems to be based on a purely creationist notion that species are in some privileged perfect state, and any mutation can only take them farther from that perfection. For those who actually understand biology, life is a kluge of compromises and variation. Mutations are mostly lateral moves from one chaotic state to another. They are not directional. But they do provide raw material, variation, for natural selection. Natural selection cannot generate variation, but it can select among that variation to provide differential survival. This is an old game played by creationists – mutations are not selective, and natural selection is not creative (does not increase variation). These are true but irrelevant, because mutations increase variation and information, and selection is a creative force that results in the differential survival of better adapted variation.
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    One of my earlier posts on SkepticBlog was Ten Major Flaws in Evolution: A Refutation, published two years ago. Occasionally a creationist shows up to snipe at the post, like this one:i read this and found it funny. It supposedly gives a scientific refutation, but it is full of more bias than fox news, and a lot of emotion as well.here's a scientific case by an actual scientists, you know, one with a ph. D, and he uses statements by some of your favorite evolutionary scientists to insist evolution doesn't exist.i challenge you to write a refutation on this one.http://www.icr.org/home/resources/resources_tracts_scientificcaseagainstevolution/Challenge accepted.
Weiye Loh

The Duty to Be Happy - Brainiac - 0 views

  • Is the importance of happiness overstated? That's the question the French philosopher Pascal Bruckner asks in Perpetual Euphoria: On the Duty to Be Happy, a book-length essay on happiness and its place in our lives.
  • For centuries, Bruckner explains, Western society focused on heavenly things. Happiness, if you were lucky enough to get some in this life, was understood only as a nice bonus, fleeting and illusory. What really mattered was the state of your soul - and it was suffering, not happiness, that would bring your soul closer to God. Bruckner quotes his namesake, Pascal, who wrote: "It is not shameful to die in pain - it is shameful to die in pleasure."
  • Modern Westerners, for good reason, look at things differently. Most people, even the very religious, are focused on getting the most out of our earthly lives: we want to be happy. The problem, Bruckner argues, is that pursuing your own happiness is actually harder and less satisfying than trying to perfect your soul. The old way of thinking made something useful out of suffering; the new way of thinking sees suffering as a senseless waste
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  • And the truth about happiness, as Bruckner sees it, is that it's rarely very effectively pursued. Happiness is really about luck and grace; you can be thankful for happiness, but you can't manufacture it. In fact, thinking of being happy as the sole aim of life makes happiness less meaningful. "Now that it has become the only horizon of our democratic societies," Bruckner writes, happiness, "being connected with work, will, and effort... is necessarily a source of anguish." We work at being happy - and, in working at it, rob ourselves of everything spontaneous and really joyful about happiness.
  • Bruckner isn't saying that we shouldn't be happy; what outrages him is the way modern society can turn happiness into a competition. Happy people, he thinks, tend to lord their happiness over unhappy people; unhappy people tend to feel that, if they aren't happy, then their lives are failures. In fact, many unhappy people lead very valuable lives, and assiduously cultivated happiness is sometimes not particularly valuable
  • Suffering is a natural part of life; it counts as living, too.
Weiye Loh

journalism.sg » News Corp inquiry raises questions about media accountability - 0 views

  • One is reminded of the pathetic performance of BP CEO Tony Hayward at the US Senate hearings on the Gulf of Mexico oil rig disaster. BP employed 90,000 staff globally. Tony Hayward denied awareness of the cost-cutting obsessions which compromised safety standards across the company. He did not know who approved such dangerous compromises and how such risky operations at sea were supervised. Perhaps he too was betrayed by the people he trusted?
  • Two high profile CEOs of high profile global corporations, both clueless when internal malpractice explodes into world news? Such lame excuses are unacceptable from corporate chiefs and political leaders. They are given too much power over people, resources and policy to be allowed to slither away.
  • Mr Murdoch espoused no particular political ideology. Some might call it a lack of principles. If anything was consistent in his media philosophy, it was profitable opportunism. If that meant pandering to the public appetite for ritual sacrifice of the rich and famous, so be it. If that meant offering a megaphone to Christian fanatics of America’s Bible belt and the kooky Tea Party wing of the Republicans, he would oblige. If bare breasts and titillation will outsell rival tabloids, fine.
Weiye Loh

Climate change communication: "It's a symphony, not a solo!" | Climate Reality - 0 views

  • Climate change has become such a polarizing issue (at least in some areas of the world) that it’s not always just the cold hard facts that count. In fact, research shows that many of us formulate our opinions on climate change not based on scientific evidence but based on our values. We take whatever position is most in line with and least threatening to our identity. Then — once we’ve firmly planted our feet — we look for arguments to help us defend whatever stance we’ve already taken.
  • we’ll have to show that there is no such thing as a stereotypical climate crusader. We need more people like Katharine Hayhoe, an evangelical Christian climate scientist, and U.S. Navy Rear Admiral David Titley to speak up. They show us that caring about climate change doesn’t have to be threatening to those with certain religious or political beliefs. It’s important, of course, for all of us concerned about climate change to be prepared to push back on the misleading claims of climate change deniers (or, to “win the conversation”). But generally speaking, we should attempt to approach our conversations on climate change in depolarizing, inviting and inclusive ways.
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    Those who study climate change communication say a multiplicity of voices is exactly what we need. The more cacophonous the symphony, the better! And here's why …
Weiye Loh

Not Evil Just Wrong - The explosive new documentary exposing the dangers of global warming hysteria - 0 views

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    Something I received in my email - from American Family Association, an extreme conservative Christian network. The new documentary is basically a response to Al Gore's "An Inconvenient Truth", to (counter-)claim that the global warming "Industry" is causing alarmism and tax increases. From what I see, it's a highly capitalist-driven film. The online premiere will be on 18th Oct, 8pm est. Not directly related. But still interesting I guess. =)
Weiye Loh

Rationally Speaking: Don't blame free speech for the murders in Afghanistan - 0 views

  • The most disturbing example of this response came from the head of the U.N. Assistance Mission in Afghanistan, Staffan de Mistura, who said, “I don't think we should be blaming any Afghan. We should be blaming the person who produced the news — the one who burned the Koran. Freedom of speech does not mean freedom of offending culture, religion, traditions.” I was not going to comment on this monumentally inane line of thought, especially since Susan Jacoby, Michael Tomasky, and Mike Labossiere have already done such a marvelous job of it. But then I discovered, to my shock, that several of my liberal, progressive American friends actually agreed that Jones has some sort of legal and moral responsibility for what happened in Afghanistan
  • I believe he has neither. Here is why. Unlike many countries in the Middle East and Europe that punish blasphemy by fine, jail or death, the U.S., via the First Amendment and a history of court decisions, strongly protects freedom of speech and expression as basic and fundamental human rights. These include critiquing and offending other citizens’ culture, religion, and traditions. Such rights are not supposed to be swayed by peoples' subjective feelings, which form an incoherent and arbitrary basis for lawmaking. In a free society, if and when a person is offended by an argument or act, he or she has every right to argue and act back. If a person commits murder, the answer is not to limit the right; the answer is to condemn and punish the murderer for overreacting.
  • Of course, there are exceptions to this rule. Governments have an interest in condemning certain speech that provokes immediate hatred of or violence against people. The canonical example is yelling “fire!” in a packed room when there in fact is no fire, since this creates a clear and imminent danger for those inside the room. But Jones did not create such an environment, nor did he intend to. Jones (more precisely, Wayne Sapp) merely burned a book in a private ceremony in protest of its contents. Indeed, the connection between Jones and the murders requires many links in-between. The mob didn’t kill those accountable, or even Americans.
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  • But even if there is no law prohibiting Jones’ action, isn’t he morally to blame for creating the environment that led to the murders? Didn’t he know Muslims would riot, and people might die? It seems ridiculous to assume that Jones could know such a thing, even if parts of the Muslim world have a poor track record in this area. But imagine for a moment that Jones did know Muslims would riot, and people would die. This does not make the act of burning a book and the act of murder morally equivalent, nor does it make the book burner responsible for reactions to his act. In and of itself, burning a book is a morally neutral act. Why would this change because some misguided individuals think book burning is worth the death penalty? And why is it that so many have automatically assumed the reaction to be respectable? To use an example nearer to some of us, recall when PZ Myers desecrated a communion wafer. If some Christian was offended, and went on to murder the closest atheist, would we really blame Myers? Is Myers' offense any different than Jones’?
  • the deep-seated belief among many that blasphemy is wrong. This means any reaction to blasphemy is less wrong, and perhaps even excused, compared to the blasphemous offense. Even President Obama said that, "The desecration of any holy text, including the Koran, is an act of extreme intolerance and bigotry.” To be sure, Obama went on to denounce the murders, and to state that burning a holy book is no excuse for murder. But Obama apparently couldn’t condemn the murders without also condemning Jones’ act of religious defiance.
  • As it turns out, this attitude is exactly what created the environment that led to murders in the first place. The members of the mob believed that religious belief should be free from public critical inquiry, and that a person who offends religious believers should face punishment. In the absence of official prosecution, they took matters into their own hands and sought anyone on the side of the offender. It didn’t help that Afghan leaders stoked the flames of hatred — but they only did so because they agreed with the mob’s sentiment to begin with. Afghan President Hamid Karzai said the U.S. should punish those responsible, and three well-known Afghan mullahs urged their followers to take to the streets and protest to call for the arrest of Jones
Weiye Loh

A 'Good Book,' Absent God - NYTimes.com - 0 views

  • That focus on the deity, Mr. Grayling believes, distracts from seeking the good life in the short time we are allotted.
  • Mr. Grayling finds Judaism and Christianity almost self-evidently absurd: “I could never believe the sin committed by Eve in the Garden of Eden was all that serious,” he said. “It would seem to me that knowledge was a good thing to have.” And he does not fret that we need divine commandments to ensure that we treat one another well: “All the stories that fill the newspaper — war, chaos — they are there because they are unusual. They are not as great a story as the millions of acts of human kindness throughout human history.”
  • To make a non-bible look an awful lot like the Bible could be a bad idea. There is an unfortunate history of humanist movements co-opting the forms of religion. In the 19th century, the Frenchman Auguste Comte, for example, tried futilely to start a religion of humanity, modeled on the organization of the Catholic Church, with priests, weekly services and feast days, but without God. “It ignominiously failed, and I think it’s quite right it failed,” Mr. Grayling says.
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  • But while it may be unwise to imitate organized religion, the Bible has many imitable virtues. “One of the charms of the Bible has been you can take a short passage and reflect on it,” Mr. Grayling said. And by aping the form of the Bible, he added, “ ‘The Good Book’ is presented as another contribution to the same conversation as the Bible, about the nature of the good or the good life.”
  • “I think,” the master says, “this book provides resources for thinking about what the good life might be. But we have to think for ourselves. We have to take the Socratic challenge to lead the examined life. You must transcend the teachings and the teachers. Don’t be a disciple.”
Weiye Loh

To Live in a Free Society do We Have to Tolerate Hate Speech? Geert Wilders Says Yes. | The Utopianist - Think Bigger - 0 views

  • Geert Wilders is, at best, a fear monger –  if you don’t believe me check out a speech he made in Nashville last month in which he explains that Muslim immigrants are trying to conquer Europe and soon no one will be able to wear a crucifix, women won’t be able to walk to streets without veils, etc… Plus he flat out says “Our Judeo-Christian Western culture is far better and far superior to the islamic [sic] culture.” However, Wilders does has a good point about free speech. Words can be dangerous, especially the words of a powerful politician, however free speech is vital to free societies. Speech isn’t always pretty, in fact, it is often ugly and offensive (see the comments below any YouTube video with an even slightly political message) but silence presents a different kind of danger.
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    In an opinion piece in the Wall Street Journal today Geert Wilders, a Dutch politician who recently beat a hate-speech rap in his own country for his controversial views on Islam, tells us that no speech goes too far when it is in the interest of promoting political debate.  Wilders was brought to court for making inflammatory statements about Islam and now he is speaking out against the Dutch legislation
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