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Feedback Compilation

Feedback for September 2003

Selected reader letters and TalkOrigins responses from September 2003.

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Entry 1

Feedback Letter

Comment
I would like to comment on the geological timeline. Of the twenty other websites I looked at that also had timelines this was the best I found. It had the exact info I needed about eras, years, evolution, etc. that I was looking for. Thank You.
Entry 2

Feedback Letter

From
Tim Ferris
Comment
Hello,

I will not profess to be an expert on anything, however I just had to add a comment that really helped me.

I once read the most remarkable book, one that was brilliantly written and in my option the best you will read presented in a unbiased way. Its called 'Life - how did it get here, by evolution or creation'? Sadly its not available to buy from the shops. However its free from Jehovah's Witnesses. Don't let that put you off, you have NOTHING to loose. Some who have read it still believe in what they did before they read it, however its such a fantastic book, that presets facts from both sides and its illustrated so well. And its not in a techno language.

I think you can go to www.watchtower.org to order it.

Let me know what you think, its not really a religious book its about how we got here and the amazing universes as well as the fossil record ect.

Anyway, I really enjoyed it and have read it many times, and no I am not on commission lol, just thought it was appropriate

Best wishes Tim

Response

From
Chris Ho-Stuart
Response
Thanks for the recommendation. We already have two reviews of Life - How Did It Get Here? By Evolution Or By Creation? (and [2]) available in the archive.
Entry 3

Feedback Letter

From
Tim Ferris
Comment
AFTER gazing at the stars on a clear, dark night, we come inside, chilly and blinking, our minds spinning with vast beauty and a multitude of queries. Why is the universe here? Where did it come from? Where is it going? These are the questions that many try to answer.

[Many kilobytes of stuff from http://www.watchtower.org/library/g/1996/1/22/universe_something_missing.htm deleted - WRE]

Responses

From
Wesley R. Elsberry
Response

Presenting other's words as if they were your own is dishonest. If you want to suggest a link, we have a convenient form for submitting a link at the bottom of our Other Links page.

In your last feedback item, you said that you weren't on commission. As you continue to push Jehovah's Witness materials, the veracity of that statement comes into question.

Wesley

From
Gary Hurd
Response
Two inventions, more than any other set us on the path to modern science. One is related to your opening poetic; the telescope. It forced rational people to recognize both the immensity of the universe, and that it was not ordered in the way that the professionally religious decreed.

The other was the microscope which showed that the world at our fingertips (even on our finger tips) was totally unexpected and unexplained by theologians.

These devices preceded the scientific revolution in geology and biology. The maintenance of the ancient point of view requires that you ignore the telescope, and the microscope - that you view the universe wearing blinders and look no further than your hand.

Spending some time in the T.O. archives (or a good science library) will start you toward answering the questions you posed.

Entry 4

Feedback Letter

From
matt
Comment
Does anyone think that religion over time had anything to do with the evolution of the human brain? For example could it be part of the reason humans are so aware of themselves?

Responses

From
Tim Thompson
Author of
The Recession of the Moon and the Age of the Earth-Moon System
Response
For a more detailed & quantitative version of John's argument, as to the relation between language and the evolution of the brain, see this book: The Symbolic Species: The Co-Evolution of Language and the Brain, by Terence W. Deacon. W.W. Norton & Co., 1998.
From
John Wilkins
Author of
Evolution and Philosophy
Response
I do, but it is a rather tenuous link.

Human brains are unusual in that they are much larger than the ordinary primate growth curve, so they need to be accounted for. One way to account for it is to seek explanation in the complexity, not of the environment, for many organisms live in the same environment with smaller brains, including our close cousins the Australopithicenes, but in the social interactions between humans. In short, we adapted to ourselves.

One way we did this is in language, and in telling each other stories as ways to hold the social group together and to organise the fair distribution of resources. One way we did that is to tell stories about the world, the forces of nature, and the past heroes of the group. In this, I believe, is the origins of religion, in the mythological stories we used to provide the world with a narrative.

This sets up a feedback loop. Once we can tell stories to each other about what is in our heads and the world, we get selection for better storytelling, and so religious ritual and myth makes for bigger brains. Please understand, though, that this is set back around a couple of hundred thousand years ago, and does not reflect on current religious views, which evolved in a rather different fashion in a rather different social structure.

So we adapt to the myths and rituals by getting bigger storytelling brains. This is, perforce, the simplified version and a bit of a Just So story, but backed by modern neurobiology and understanding of social patterns and dynamics.

From
Gary Hurd
Response
As opposed to the notion that religiosity influenced human evolution you propose, I invite you to consider that the human brain 'affords' us a rather odd, and perhaps unique neurological state. This is the disassociative state. Disassociative, and hallucinatory states are easily induced by sleep deprivation, fasting, or trance induction. All of these activities are central to the practice of mystics and religious ecstasists, and are employed generally in cross-cultural examples of divinitory ritual.

I would further observe that there are several drugs that also produce this "religious" mental state. This is mentioned not as a recommendation, but as an observation that psychic states are fundamentally biochemical. Thus, human evolution made religiously interpreted mental states possible.

These are not new observations. I suggest the following reading:

Crapanzano, Vincent and Vivian Garrison 1977 Case Studies in Spirit Possession New York: John Wiley and Sons

Hurd, G. S., E. M. Pattison 1984 "Manifestations of Possession in Novel Ecological Contexts," in Ecological Models in Clinical and Community Mental Health, W. A. O'Connor and B. Lubin (ed.s). John Wiley & Sons: New York.

Klienman, Arthur 1980 Patients and Healers in the Context of Culture: An exploration of the borderland between Anthropology, Medicine, and Psychiatry. University of California Press

Ott, Jonathan 1976 Hallucinogenic Plants of North America. Berkeley: Wingbow Press

Pattison, E. M., Joel Kahan, G. S. Hurd 1986 "Trance and Possession States," In Handbook of Altered States of Consciousness. B.B. Walman and M. Ullman (ed.s) New York: Van Nostrand Reinhold, Also look over these:

Amazon Books: The "God" Part of the Brain

Now, as the other comments have indicated, humans are also unusual that these physical states can be altered by thought and language. Thus, in humans, the ability to alter physical states by cognition may have also contribute to evolutionary selection. This is not religion per se.

Entry 5

Feedback Letter

From
Benjamin Marston
Comment
Nobody has ever answered this question I have. It even stumps the missionaries. Creation and evolution are the same thing. A force had to take effect to make living matter from nonliving matter. The days in Genisis are synonyms for eons. The order in which they happen is mostly correct. We witnessed evidence of evolution with the Black Plegue by the Delta 32 mutation that gave some people immunity. Where did the Delta 32 mutation come from? God always finds a way, whether it be by a comet or by the person's actions. Why is there an argument? Because, whoever wrote Genesis didn' think it mattered.

Response

From
Chris Thompson
Response
Many people believe that a supreme being somehow guided evolution. Evolutionary biology simply cannot address this question. However, to claim organisms evolved in the order in which they are presented in Genesis is simply incorrect. Flowering plants do not appear in the fossil record before animals, for instance. But you are correct in thinking the major problems arise when Genesis is taken as literal truth, rather than an educational allegory.
Entry 6

Feedback Letter

Comment
Let me begin by stating that you have a great website. Moreover, before I begin with my subject, I'd like to state that I am not a creationist and do accept evolutionary theory. In fact, I believe it is the best scientific explanation for the diversity of life on earth at this time. However, having said that, I find it difficult to accept your view that evolution is a fact. In fact, I have to agree with the creationists when they state that evolution is not an established fact (not that creation is either). The following are the reasons for my conclusion (but please correct me if I am wrong or misinformed).

First, an article in your website defines evolution as changes in allele frequency within a gene pool from one generation to the next. If this was all that was meant by the term "evolution", then nearly all educated individuals would have no problem with your claim that evolution is a fact. There is ample evidence for such a conclusion. However, while this might be the technical definition of evolution, this is not what is implied when the term is used within the context of the creation-evolution debate. The definition of evolution extends far beyond this understanding. What evolutionists state (and is understood by the public when the term, evolution, is used) is that all life on earth arose from a common ancestor, and that the diversity of life is the result of "descent with modification" from this common ancestor. This seems to be Darwin's view as well. Thus, it would be more correct to define evolution as changes in allele frequency within a gene pool from one generation to the next which, along with other factors, have generated all of the diversity of life on earth from some ultimate common ancestor. If this is what is meant by evolution, then I would say that evolution cannot be called a "fact" for there is insufficient evidence to make such a bold claim as this. At best, we can say that there is sufficient evidence for someone to reasonably conclude that descent with modification from a common ancestor has taken place. But we cannot call this a fact. It is an interpretation of what took place based upon given empirical data.

Second, many people (including evolutionists) believe that evolution means all life arose from a single common ancestor --a single organism or type of organism. However, if abiogenesis is mathematically possible (and true), then there is no basis for limiting the diversity of life to a single common ancestor. It should be possible that the diversity of life arose from several different lines. Perhaps the plants arose from a common ancestor, but from an ancestor not shared in common with the "advanced" animals, such as lions, dolphins, and humans. I realize that abiogenesis is not directly related to evolutionary theory, but my point is: Why do evolutionists claim that it is a single common ancestor that gave rise to all of Earth's diversity? Why not two, three, or four lines (one representing each kingdom)? Moreover, is there sufficient evidence of a single common ancestor to conclude that this is a fact?

While the term "theory" may not have the same meaning when employed by a scientists versus a layman, the term "fact" is definitively a more potent term than "theory". And I find it difficult to accept that evolution is a fact, though I do agree it is a very good (even profound) theory or explanation of the history of life on earth.

Please comment.

ZZ

Response

From
John Wilkins
Author of
Evolution and Philosophy
Response
Creationists misuse a lot of terms - that is no good reason to revise them in science or when discussing science. However, the definition of evolution as allele frequency changes in populations was devised to discuss evolution in scientific contexts, not to convince creationists. The argument of those who prefer that definition (and not all biologists do) is that it implies that evolution will occur in the larger sense unless prevented, and this is true. The problem with those who think that "large" evolution will not occur is that they have never been able to show why allele frequency change won't result in the increase in the diversity of life. They assert it, but no reason is ever forthcoming other than "there are barriers to change over 'kinds'."

In any case, cladogenetic change (increases in the numbers of species, and the larger groups species comprise, by branching - what Darwin called common descent) is as well attested a fact as anything in biology. We've seen it. And for each speciation event, no matter how large in the apparent changes, the reply from anti-evolutionists has been "but it's still the X kind", as if we expected anything else. All mammals are still vertebrates, and all vertebrates are still animals, and all animals are still eukaryotes, and so forth. And each of those "kinds" was once a single species.

As to a single common ancestor - Darwin thought that there would be "a few [original] forms, or one". These days a few people think that there were several original forms of life because lineages were not isolated then as now. Also, and this is my own opinion, you need an ecology for life to exist, and I think that life always existed in more than one "form". The base of the tree of life might have been a tangle of roots...

As to the "theory versus fact" bit, we have a very good FAQ explaining the meanings of these terms in biology - and in both the common sense and the scientific sense, evolution is a fact, and there is a theory to explain it. In fact, there are more than one.

Entry 7

Feedback Letter

From
Elephanticity
Comment

I came across a quote from a famous Theist the other day, and instantly thought of some of the oft-refuted canards posted in the Feedback here.

"Often a non-Christian knows something about the earth, the heavens, and the other parts of the world, about the motions and orbits of the stars and even their sizes and distances,... and this knowledge he holds with certainty from reason and experience. It is thus offensive and disgraceful for an unbeliever to hear a Christian talk nonsense about such things, claiming that what he is saying is based in Scripture. We should do all that we can to avoid such an embarrassing situation, lest the unbeliever see only ignorance in the Christian and laugh to scorn."

-- St. Augustine, "De Genesi ad litteram libri duodecim" (The Literal Meaning of Genesis)

It seems to me this caution would apply to many more scientific disciplines than just Astronomy.

Entry 8

Feedback Letter

From
Scott G.
Comment
Dear Talk Origins

I read the comment by that creationist trying to argue the case of creationism based on COMMON SENSE!!! Common sense depends on every individuals point of view and observation. If a christian sees the world as needing a creator, than that is his belief. If an evolutionist makes an observation that monkeys are similar to man, than that is what he views as common sense. That does not mean much, one way or another.

Entry 9

Feedback Letter

From
Keith
Comment
In a recent exchange with a creationist, he turned me onto a scientific theory he called "Inference of Design." He assures me that this is a solid scientific theory, with capital letters and everything.

That's gotta be the dumbest thing I have heard all week.

We see a pattern, therefore it must be designed?

My uncle and my grandfather got into an argument once, about whether my infant cousin's features reflected one side of the family or the other's. They looked at her and were sure she had a 'Smith' family nose, or 'Jones' family cheekbones. They 'inferred' the dominance of familial genetic traits by seeing them reflected in her features.

The fact that my cousin was adopted from outside either genetic line hardly slowed them down.

Clearly, arguments based on what we project onto an object, or a system, or a person, say a lot more about us than about the subject.

Response

From
Wesley R. Elsberry
Response

Ah, you have encountered William Dembski's "Design Inference". Like you, I was less than impressed. I posed some questions about evolutionary computation back in 1997 that Dembski is still apparently trying to deal with. I outlined a number of problems in my review of "The Design Inference" back in 1999. But I can narrow it down to a couple of URLS that you should visit:

  • The AntiEvolutionists: William A. Dembski (The Design Inference)
  • The AntiEvolutionists: William A. Dembski (No Free Lunch)

Those two pages link to a whole bunch of criticism of the "Design Inference". Enjoy.

Wesley

Entry 10

Feedback Letter

Comment
I have no idea what this site is about, but I do know that if you determine what age the fossils are by type of dirt, and the dirt by the type of fossils, that means that the whole geologic time scale is an example of Circular Reasoning.

Response

From
Wesley R. Elsberry
Response

Please have a look at our FAQ on Radiometric Dating and the Geological Time Scale by Andrew MacRae.

Feel free to tell us about any specific problems you have with the reasoning outlined in that document.

Wesley

Entry 11

Feedback Letter

Comment
But WHY did horses evolve? Why did they have different teeth because they ate tougher plants? why?

Response

From
John Wilkins
Author of
Evolution and Philosophy
Response
If you mean, why did they evolve from older forms that were browsers and had three toes to grazers with one hoof, the answer is simple - grass evolved. As a result, herbivores had to adapt to silicaceous (silicon containing) food sources and have feet capable of running over grasslands from predators (or towards prey - grass lands affected many species).
Entry 12

Feedback Letter

From
Charles Emmett
Comment
Congratulations for putting out the best Evolution website out there. You guys worked long and hard to provide a wonderful archive of Articles, Debates, and plain scientific fact. Any reasonable person could come to your site, and find just what he/she needs in order to understand Evolution. Great job and keep up the great work.
Entry 13

Feedback Letter

From
Kritter Bug
Comment
OK, let me get this straight. You guys call evolution a science, though it disagrees, indeed it disproves many scientific LAWS that are used as disclaimers of all other theories. First of all, the 2nd law of Thermodynamics says that the earth is winding down. Not only does that clearly imply that the earth was, at one time, wound up, but it also stands in stark contrast to the THEORY of evolution. Evolutionists believe that things are becoming more orderly. How can both be true? Also, if evolution were accepted as true, how come it doesn't occur today? Not one individual can say with even the slightest bit of certainty that they have seen evolution today, it simply doesn't happen. Fossils suggest that the earth, at one time, was covered with water. Noahs flood, and the remains of the ark on Mt. Aarat, would collaborate with that idea. Ok, this is the deal. Neither evolution nor creation can scientifically be proven true, but evolution CAN be scientifically disproved. How then can a theory that goes against scientific law, be accepted?

Response

From
Wesley R. Elsberry
Response

Evolutionary biology is science. Your problem is that you've been listening to people who don't know what science is, but are willing to tell whoppers about it to preserve some of their ignorant ideologically-based preconceptions.

We hear people claim that evolution contradicts the second law of thermodynamics (SLoT). Uniformly, these people don't know thermodynamics, don't understand evolution, and couldn't form a valid argument if their lives depended on it. We have a whole section on thermodynamics here on the Archive. I have a challenge for those who wish to claim that evolution contradicts what we know about thermodynamics. This challenge lays out what is necessary to make a valid argument along those lines. So far, no antievolutionist has succeeded in meeting the challenge.

It is a favorite canard of antievolutionists that evolution cannot be observed. A cursory look at the scientific literature would disabuse them of this notion, but actual research and intellectual honesty is anathema to evolution deniers. The Archive hosts several resources that show that evolution is, indeed, observed to occur.

  • Observed Instances of Speciation
  • Some More Observed Speciation Events
  • Evidence for Evolution: An Eclectic Survey
  • 29+ Evidences for Macroevolution

Fossils suggest that evolution happened.

  • Transitional Vertebrate Fossils FAQ
  • Fossil Hominids

If Noah's Flood were a global deluge, it should have left some evidence behind. Geologists in the 19th who believed in the biblical creation account went and looked. The most prominent of these, Adam Sedgwick, had to admit that they had failed to find the signs of such a deluge that must have existed had it occurred. See this essay on Sedgwick's recantation.

As for Noah's Ark on Mt. Ararat, nobody has demonstrated that there are any remnants to be found there. We have a large number of resources on Flood Geology here on the Archive.

Theories and conjectures which contradict empirically observable phenomena can't be accepted. Evolutionary biology fits what we observe empirically. Young-earth creationism contradicts what we observe empirically.

Wesley

Entry 14

Feedback Letter

Comment
Mathematical probability: "it is so improbable that one and only one species out of 3,0000,000 should develop into man, that it certainly was not the case".

By the same argument, it is improbable that my 2 parents should have met, their 4 parents should have met, their 8 parents should have met, etc. It is so improbable that I was born, that it certainly didn't happen.

Response

From
Wesley R. Elsberry
Response

Hey, that sounds familiar... Have a look at this old post of mine.

Wesley

Entry 15

Feedback Letter

From
Alice Ospovat
Comment
I just wanted to share my theory on why you've gotten so much feedback from confused people who think you are the Flat Earth Society. A Google search on "flat earth" turns up the Talk Origins site in about sixth place, but more importantly, as the first site in the search that includes content written by real Flat Earthers, and with a title that doesn't make its contents clear. The first site is a parody, the next is a fantasy gaming site, a couple more are sites discussing Flat Earthers, and then the Talk Origins link shows up with the heading "The International Flat Earth Society."

I suspect that a lot of people see the link, follow it, and don't actually read the page at all before leaving stupid feedback. Although you've mostly solved the problem by disabling the feedback link, it seems like you might still improve visitors' understanding by using a longer and more explanatory page title, for instance "The International Flat Earth Society really exists" or "The story behind Flat Earthers," etc.

Also, thanks for maintaining such a great site. It's the best evolution site on the net by far.

Response

From
Wesley R. Elsberry
Response

That's a good point. I've changed the title of the page to say, "Documenting the Existence of 'The International Flat Earth Society'".

I can't say that I'm optimistic about how much influence that will have on those determined to leave feedback on the topic.

Comments like yours help make the effort worthwhile.

Wesley

Entry 16

Feedback Letter

From
Naked Celt
Comment
I've read Ted Holden's bizarre theories and the refutations of them. I thought Holden was barking in the first place, and that impression has certainly been confirmed. But I'd like to know: what is the equation relating weight, height (or body-section length) and muscular strength in humans?

Response

From
PZ Myers
Response

Roughly speaking, muscle strength increases proportionally to the cross sectional area, or as the square of the linear size. Weight increases as the cube of the linear size. Therefore, strength to weight is proportional to the 2/3 power of size.

There are lots of complications, of course -- musculo-skeletal systems are arrangements of levers, which can affect the effectiveness of activity, and respiration rates come into play as well. It's never as simple as one straightforward equation.

Entry 17

Feedback Letter

Comment
My husband has been trying to "prove" to me that dinosaurs and people once lived together. He is a YEC (literal 6 day type) and he wants really hard to try to disprove evolution. He sent me pictures of these Ica Stones which have carvings of people riding dinosaurs and stuff like that. I'm sure that it is a hoax, but he seems convinced. Is there any info you have on these? Also, thank you very much for this wonderful website, its been a wonderful tool for me to have answers to the questions asked me by my creationist friends.

Response

From
Mark Isaak
Response
The Ica stones are almost certainly modern folk art designed to sell to the gullible. An article by Massimo Polidoro ("Ica Stones: Yabba-Dabba Do!", Skeptical Inquirer 26(5), p. 24, Sept/Oct 2002) relates how a couple peasants have carved them, basing their designs on comic books, school books, and magazines.
Entry 18

Feedback Letter

From
J Gillan
Comment
This question may have been covered elsewhere, but I have not found it. I was reading the 29 evidences for macroevolution, specifically about common descent, that all life descended from one ancestor.I am curious what theories there are about why only one lineage accounts for all life, why all life shares certain attributes from a very primative form. Does this mean that the transitional object from non-life to life only happened once? Or that all other transitions died off, either before or after the common ancestor? If the common ancestor is more advanced than the first transitional object, perhaps along the lines of a prokaryotic cell organism, why did only one produce every other type of organism? It looks like, according to the geologic timeline on your site, that it took from 300 million to 1000 million years, at most, from the formation of oceans and the earth's crust to prokaryotic organisms. In the 2800myears that followed, why not any more transitons from non-life to life, at least any that sustained a lineage? Not even some fun bacteria? Perhaps I am missing the obvious, but I don't think that compitition for resources would be an issue at this level. Luv the site.

Response

From
Gary Hurd
Response
Much of your comment is questions about the origin of life. The common reaction from most evolutionary biologists who debate with creationists is to avoid questions too close to origin of life issues. The most simple explanation for this is that evolutionary theory operates after the origin of life (OOL), and is therefore not concerned with the origin of life. And this is very true.

But, a partial answer to your question(s) can be found without considering Origin of Life (OOL) research at all.

"... why all life shares certain attributes from a very primative form?"

I think that if you consider this a bit more, you will see that this was a clear prediction of evolutionary theory that was only recently confirmed. If all life descends from one life form, then all life will share some common attributes. An interesting article is: J. Kirk Harris, Scott T. Kelley, George B. Spiegelman, and Norman R. Pace 2003 The Genetic Core of the Universal Ancestor

"Does this mean that the transitional object from non-life to life only happened once?"

The endosymbiont hypothesis (that organelles such as mitochondria are the symbiotic association of formerly independent life forms) rather suggests that there were multiple "origins" of life. A current discussion I recommend is :

Dyall, Sabrina D., Patricia J. Johnson 2000 Origins of hydrogenosomes and mitochondria: evolution and organelle biogenesis. Current Opinion in Microbiology 3:404-411.

A good review (and an extension) of the literature on the origin of cells is: Martin, William, Michael J. Russell 2002 On the origins of cells: a hypothesis for the evolutionary transitions from abiotic geochemistry to chemoautotrophic prokaryotes, and from prokaryotes to nucleated cells Philosophical Transactions: Biological Sciences Vol.358, No.1429:59-85

It is interesting to me that all that Darwin had to say about the origin of life in his Origin of Species was,

“ I believe that animals are descended from at most only four or five progenitors, and plants from an equal or lessor number.

Analogy would lead me one step farther, namely, to the belief that all animals and plants are descended from some one prototype. But analogy may be a deceitful guide. Nevertheless all living things have much in common, in their chemical composition, their cellular structure, their laws of growth, and their liability to injurious influences. ...

Therefore, on the principle of natural selection with the divergence of character, it does not seem incredible that, from some such low and intermediate form, both animals and plants may have been developed; and, if we admit this, we must likewise admit that all the organic beings which have ever lived on this earth may be descended from some one primordial form. But this inference is chiefly grounded on analogy, and it is immaterial whether or not it be accepted. No doubt it is possible, as Mr. G. H. Lewes has urged, that at the first commencement of life many different forms were evolved; but if so, we may conclude that only a very few have left modified descendants.”

From the 6th edition.

So I note that Darwin was consistent in his opinion that there were few first life forms, and merely a possibly that there could have been only one. Also note that Darwin is little interested in the issue using well under one page of text from a 450 page book.

Following a brief period of optimism from the early 1950s to the late 1960s, many scientists became discouraged about origin of life research. There seemed to be too many open questions about the early geochemical conditions of the Earth to properly constrain the problem. But, the overall scientific world view surely does encompass the nebular theory of planetary formation, the age of the Solar System, and (in my understanding) the origin of life. And, the last twenty years have resolved many of the issues that once seemed to have been out of reach.

There is good evidence for very early landforms, and oceans:

MOJZSIS, STEPHEN J., T. MARK HARRISON, ROBERT T. PIDGEON 2001 Oxygen-isotope evidence from ancient zircons for liquid water at the Earth's surface 4,300 Myr ago Nature 409, 178-181 (11 January )

Sleep, N. H., K. Zahnle, P. S. Neuhoff 2001 Initiation of clement surface conditions on the earliest Earth PNAS-USA v.98 no. 7: 3666-3672

Wilde, Simon A., John W. Valley, William H. Peck, Collin M. Graham 2001 Evidence from detrital zircons for the existence of continental crust and oceans on Earth 4.4 Gyr ago Nature Vol 409:175-181

The following comments from Lazcano and Miller are quite relevant: A. Lazcano & S.L. Miller 1994 How long did it take for life to begin and evolve to cyanobacteria Journal of Molecular Evolution 39(6): 546-554, December, From the abstract:

"There is convincing paleontological evidence showing that stromatolite-building phototactic prokaryotes were already in existence 3.5 x 10(9) years ago. Late accretion impacts may have killed off life on our planet as late as 3.8 x 10(9) years ago. This leaves only 300 million years to go from the prebiotic soup to the RNA world and to cyanobacteria. However, 300 million years should be more than sufficient time. All known prebiotic reactions take place in geologically rapid time scales, and very slow prebiotic reactions are not feasible because the intermediate compounds would have been destroyed due to the passage of the entire ocean through deep-sea vents every 10(7) years or in even less time."

So, even if we accept the notion that heavy impacts would have sterilized the Earth around 3.8Ga there is ample scope for life to originate by the age of the earliest known microfossils around 3.5Ga. There is more recent research results that show that Miller was too pessimistic in his opinion of hydrothermal vents as productive locations for the origin of life. The next three articles will give you a good set of materials to begin that reading.

Amend, J. P. , E. L. Shock 1998 Energetics of Amino Acid Synthesis in Hydrothermal Ecosystems Science Volume 281, number 5383, Issue of 11 Sep , pp. 1659-1662.

A. T. FISHER, E. E. DAVIS, M. HUTNAK, V. SPIESS, L. ZÜHLSDORFF, A. CHERKAOUI, L. CHRISTIANSEN, K. EDWARDS, R. MACDONALD, H. VILLINGER, M. J. MOTTL, C. G. WHEAT, K. BECKER 2003 Hydrothermal recharge and discharge across 50 km guided by seamounts on a young ridge flank Nature 421, 618 - 621 (2003);

Imai, E., Honda, H., Hatori, K., Brack, A. and Matsuno, K. 1999 Elongation of oligopeptides in a simulated submarine hydrothermal system Science 283(5403):831–833.

Perhaps I am missing the obvious, but I don't think that compitition for resources would be an issue at this level.

A brief introduction to the pre-cellular competition will come from these articles:

Mulkidjanian, Armen Y., Dmitry A Cherepanov, Michael Y Galperin 2003 Survival of the fittest before the beginning of life: Selection of the first oligonucleotide-like polymers by UV light BMC Evolutionary Biology 2003 3:12 (published online 28 May 2003)

Woese, Carl 1998 The universal ancestor PNAS Vol. 95, Issue 12, 6854-6859, June 9

Woese, Carl 2002 On the evolution of Cells PNAS Vol. 99 13:8742-8747, June 25

In the 2800m years that followed, why not any more transitons from non-life to life, at least any that sustained a lineage?

Once life forms became common, the conditions that had contributed to the origin of life no longer existed- transformed by the biochemical products of life. An additional problem that exists for the delineation of separate original lineages is lateral genetic transfer. For example: Harris et al (2003) ( cited above) and, Olendzenski, Lorraine, Olga Zhaxybayeva, J. Peter Gogarten 2000 How Much Did Horizontal Gene Transfer Contribute to Early Evolution?: Quantifying Archaeal Genes in Two Bacterial Lineages (Abstract) General Meeting of the NASA Astrobiology Institute.

My current favorite book on the Origin of Life for non-specialists is:

Iris Fry, 2000 The Emergence of Life on Earth: A Historical and Scientific Overview Rutgers University Press

Entry 19

Feedback Letter

From
T. Mendenhall
Comment
Great collection of information here. I admit I have creationist leanings, but not because of the scientific debate. I haven't seen anything addressing the theological problem: no creation (special creation) - no fall, no fall - no atonement, no atonement - no Christ. Do you have anything to refer me to?

Response

From
John Wilkins
Author of
Evolution and Philosophy
Response
Not really. That is an issue you and your religious authorities have to work out. It appears not to be a major problem for most denominations of the Christian Church, so perhaps it is not so great a problem as it seems.

We here have an eclectic collection of faiths and non-faiths, but this site is for refutation of bad science, primarily. Some incorrigibles have written on philosophy, though, but they are safely ignored.

At least one writer thinks the two views are compatible:

Evolution, Sociobiology, and the Atonement

Patricia A. Williams

Zygon Volume 33Issue 4Page 557 - December 1998

This essay views Christian doctrines of the atonement in the light of evolution and sociobiology. It argues that most of the doctrines are false because they use a false premise, the historicity of Adam and the Fall. However, two doctrines are not false on those grounds: Abelard's idea that Jesus' life is an example and Athanasius' concept that the atonement changes human nature. Employing evolution's and sociobiology's concepts of the egocentric and ethnocentric nature of humanity and the synergy between genes and environments to produce a "nature," this essay shows that these two doctrines can be amalgamated to make sense of the atonement in the late twentieth century.

and here is a Mormon compatibilist view, and here a more orthodox Christian survey of views and philosophies. Finally, to be complete, here is a 1916 edition of an 1899 Bible Study that asserts the incompatibility.

Entry 20

Feedback Letter

From
Bubba Bunker
Comment
Ya'll are danged near crazy. Everybody knows that the world is a triangle. I'm sliding down my waterfall right now, and i'm in the ocean ther. In Kentucky we have this here theory called "Triangle Earth Theorist." Yeppers.

Response

From
Mark Isaak
Response
Does "the four corners of the earth" refer to its tetrahedral shape?
Entry 21

Feedback Letter

From
bomit
Comment
hi,

what are some older books than the bible that I can read?

thank you, bomit

Response

From
Wesley R. Elsberry
Response

Well, first we have to determine what you mean by "older than the bible". Do you mean older than any portion of the written bible? If so, only writings predating 586 BCE will do, since prior to the Babylonian exile the Hebrews utilized oral tradition rather than a written record. But perhaps you meant books which were written before the latest written part of the bible, which would mean anything prior to about 100 AD would do. Or perhaps you meant any book written prior to the codification of what books comprised the bible, which would mean any book written before 400 AD would do.

I guess we will pass over the issue of "that I can read", since that would require some knowledge of your particular expertise in ancient languages. Assuming that the reader is capable of reading any ancient text that is available, we can move on.

The Egyptian Book of the Dead at about 1600 BCE easily predates the earliest written part of the bible. Fortunately, there is an online version. Many other written materials of great antiquity can be viewed via the CWRU ETANA collection.

Wesley

Entry 22

Feedback Letter

From
Fred
Comment
I hope this answers your question.

Was the flood in Noah’s day just a local flood? Answer: Many people have heard Dr. Hugh Ross teach that the flood was local and only killed the people and animals in the area where Noah lived.

Let’s see what God says: (edited Genesis 6:7, and 6:11-22, or so. I suggest that any interested party can use a searchable online Bible, G.H. My favorite is:

The Unbound Bible ).

Response

From
Gary Hurd
Response
If you want to take issue with Hugh Ross, I suggest that you visit his website: Reasons To Believe

The seem to be three topics that are most difficult for creationists to reconcile their particular biblical interpretations with the direct observation of the world. One of these is the lack of geological data that is consistent with a global flood. The classic statement of the creationist's position from this century is found in The Genesis Flood by Whitcomb and Morris. How this became so central to the creationist worldview is examined by Ronald Numbers in The Creationists: The Evolution of Scientific Creationism .

If you would like to learn about the ancient literary tradition that was the original source for the biblical flood story I recommend Stephanie Dalley's Myths from Mesopotamia: Creation, The Flood, Gilgamesh, and Others. Revised . Blenkinsopp (1992) and Friedman (1997) are very important discussions of the flood's role in mainstream biblical exegesis.

An interesting idea linking ethnoastronomy with the flood myth is found here:

Introduction to Astronomy: EthnoAstronomy: Star Myths Deluge Stories

Note that I can't direct you to any geological data that supports the Flood story because there is none. Various creationist "ministries" have tried to selectively point to one small geological section or another as "proof" of their biblical interpretations, but all these fail when critically examined. Some relevant websites for consideration are:

By Joe Meert

  • Radiometric Dating, Paleosols and the Geologic Column: Three strikes against Young Earth Creationism
  • Can Creationists Fit the Flood in a Geologic Framework?

And here at TalkOrigins Archives

  • A Criticism of the ICR's Grand Canyon Dating Project

Blenkinsopp, Joseph 1992 The Pentateuch: An Introduction to the First Five Books of the Bible The Anchor Bible Reference Library New York: ABRL/Doubleday

Friedman, Richarrd Elliott 1987 Who Wrote the Bible New York:Harper and Row (Paperback Edition)

Dalley, Stephanie 2000 Myths from Mesopotamia: Creation, The Flood, Gilgamesh, and Others. Revised Oxford: Oxford University Press

Numbers, Ronald L. 1993 The Creationists: The Evolution of Scientific Creationism Berkeley: University of California Press

Whitcomb, John C., Henry M. Morris 1961 The Genesis Flood Grand Rapids: Baker Book House

Entry 23

Feedback Letter

Comment
You got a letter which said:

[...] Did you know that when NASA was calculating dates to send up a satellite in orbit, they found there was a missing day in the rotations and revloutions of the Earth? They looked to the Bible for an answer and found that in the Bible, God stops the sun for "ABOUT a day".... the word ABOUT is the key. To make a long story short, they did some scientific stuff and calculated this to be only 23 hours and 20 minutes. There was still a missing 40 minutes. Again they went to the Bible and found another spot where the prophet Elijah asks God to move the sun backwards 10 degrees. 10 degrees is exactly 40 minutes, hence the missing day in the universe. [...]

I read the links you pointed to and they all missed a possible origin for this urban legend. If you do "some scientific stuff and calculate[...]" you will find that the day is 23 hour and 56 minutes. Really! 4 minutes short.

Well, sort of, really. What we call a "day" (speaking of length) is what astronomers call the Mean Solar Day. That's what our clocks run on. The clock motors that turn a telescope (except a solar telescope) use the 23 hour and 56 minute day called the Sidereal Day which is how fast Earth turns in relation to the universe at large.

"Sidereal"??? There are multiple Latin words for star. "Sterra" (Old Latin), "sterla" (Old Latin with the "-la" diminutive, hence twinkly little star), "stella" (Classical form derived from "sterla"), "astron" plural "astra" (a Greek word used in Latin), "astrum" plural "astra" (the Greek word partially assimilated) and "sidus" plural "sidera." So "sidereal" and "stellar" are exact synonyms. Source: Casell's Latin Dictionary.

Think of it this way. Imagine if Earth did not rotate (and for the sake of the thought problem, imagine that it would still be inhabitable). A particular geographic location would always have the same stars overhead. But as Earth completed a year the Sun would have an apparent motion. Let's say you lived where Orion is overhead on a night. Orion is on the equator. 6 months later when Earth was 180° away in its orbit the sun would be between you and Orion. That is, if Earth did not turn there would still be one solar day a year.

So in the real world the spinning of Earth creates a one day discrepancy in the total year. A Mean Solar Day is 1440 minutes long. 1440/365 = 3.9 minutes. There is the difference between the 2 different definitions of "day."

Apparently some creationist added a 0 to the 4 minute discrepancy to work it back to Joshua.

Response

From
Chris Ho-Stuart
Response
Thanks for an interesting feedback. I am the person who wrote the earlier response (in feedback for June 2003) on the legend of NASA computers finding Joshua's long day.

You present an intriguing speculation, that confusion between solar and sidereal days could have contributed to the development of this legend.

No doubt, anyone who is so confused about how computers extrapolate orbits as to give a moments credence to the legend might well make all kinds of strange associations in their mind. However, research into the origins of the story do not show any role for this particular error.

The links I gave last time do not go into a huge amount of detail, but essentially the earliest versions of the story date right back to 1890, long before NASA computers were introduced as a variation. Here is another link to someone who has actually managed to track down the 1890 booklet in which the notion was first proposed. See Joshua's Long Day and the NASA Computers by Robert Newman, at the "Interdisciplinary Biblical Research Institute".

Entry 24

Feedback Letter

From
Michael Patrick
Comment
This is probably the most informative and open-minded source I have yet to see on the subject of evolution. When I first visited the site I was slightly confused as to whether it was meant to promote Creationism or dispel it due to the fact that you do give Creation and I.D. arguments a fair amount of space. With that in mind, it boggles me when people send feedback telling you to 'step off your high pedestal' or '(you) treat Creationists as if they don't know anything'. This is ridiculous. You clearly give creationists and other anti-evolutionists more than enough platform on this site and also by linking to theirs. The only reason it seems like you are mocking or making them look like idiots is the fact that their arguments don't stand up to any serious scrutiny.
Entry 25

Feedback Letter

From
rebecca
Comment
Hi I just read the January 2003 pick of the month article about a womans transition from creationism to evolutionism. Something I found interesting was her reasons for believing creationism is not true. She wrote that some of the creationist she read books by or talked to or watched a show by told lies so that creation would work with science. What I found interesting was the fact that she questioned what they said because of what she learned in school, but never questioned( or so it seems) what she learned in school. Just because a teacher or a book teaches something doesn't mean its true. I believe there are many science books also full of lies or half truths to support evolutionism. Just because a scientist says something is true doesn't mean it is. Scientists do profess to believe the truth of the evidence, but they can read the evidence or lack there of to reinforce theire beliefs in evolution when the evidence really points to creationism. I do not think all of evolution theories are wrong. I do think microevolution occurs all the time, I just don't believe in macroevolution. Darwins birds proved microevolution not macro. It also seems to me that there really is no solid proof in macroevolution.

Response

From
Kenneth Fair
Response
You might consider reviewing the article 29+ Evidences for Macroevolution on our archive. As the title implies, it sets forth more than 29 different lines of evidence that support macroevolution, complete with predicted observations, confirming evidence, and potential falsifications. Macroevolution is far more documented than many other scientific propositions that you or I would take for granted.
Entry 26

Feedback Letter

Comment
Where to begin? I read through an article on your site entitled "Five Major Misconceptions about Evolution," and I found it to be rather...well...hypocritical. The number of misconseptions in the article about Creationism is amazing. Not to mention logical fallacies populate the page like a plague. For instance, you state that life isn't a closed system, and you would be correct, but of course, Creationism doesn't say that it is. And you cannot argue that the Universe is a closed system. A very large closed system, but none the less a closed system. I also rather liked your inability to distinguish between adaptation and the theory of Evolution. For instance, insects adapt to become immune to pesticides, which could be argued to be a form of evolution, but far from proves the theory of Evolution. Also I found this comment rather interesting, "You must show that the evidence is either wrong or irrelevant or that it fits another theory better. Of course, to do this, you must know both the theory and the evidence." I find that you do not sufficiently grasp the concept of Creationism, and I like how you directly state that Creationism has no scientific proof on it's side...nothing could be further from the truth. Anyway, I've gone on further than I intended, but then again, it couldn't be avoided.

Response

From
Kenneth Fair
Response
The reader appears to misunderstand the point of the Five Major Misconceptions about Evolution article. The article is intended to give a brief summary of creationist arguments that arise time and time again (especially in the talk.origins newsgroup) and a brief set of reasons why those arguments are misguided.

I can assure the reader on one point, however. The contributors to this Archive have a great deal of familiarity with creationist arguments, many of them having numerous books and pamphlets from creationist sources in their personal libraries. In particular, Mark Isaak, the author of the Five Major Misconceptions about Evolution article, has just completed an extensive classification of creationist claims. Believe me, he's quite familiar with what creationists say.

The reader also makes several incorrect assertions. The first is that the universe is a not closed thermodynamic system; as Tim Thompson (I believe) has pointed out before, the universe is expanding and constant size is a precondition for a system to be thermodynamically closed. In any event, the question here is the development of life on Earth; the openness or closedness of the Universe thermodynamically has no bearing on that question.

Biologists define evolution as the change in the gene pool of a population of organisms over time, and as such, evolution encompasses adaptation, common descent, and many other observations and models. The reader should examine the following articles:

  • 29+ Evidences for Macroevolution
  • Observed Instances of Speciation
  • Some More Observed Speciation Events
  • Evidence for Evolution: An Eclectic Survey
Entry 27

Feedback Letter

Comment
Evolution philosophy teaches all organisms act selfishly. If this is true then why do people have pets and love their families?

Science is not a basis for making moral decisions. Only religion teaches right from wrong.

Responses

From
Chris Ho-Stuart
Response
Actually, evolution is not a philosophy, but the scientific model underlying modern biology. It does not teach or imply that organisms act selfishly. It implies (amongst many other things) that where traits arise within a population that improve the reproductive success of organisms carrying those traits, then those traits are likely to become more common in successive generations. Such traits often include altruistic and co-operative behaviours.

Evolution thus explains why it is natural for people to place a special importance on their own families.

On the other hand, you are quite correct that science is not a basis for making moral decisions. Science is just the process for finding out about the natural world and how it works. It may be natural for people to put their own families first, but that is not a supreme moral imperative. Someone who deliberately subverts the rights of others for the advancement of their own children may be behaving naturally; but they are not behaving morally.

It is also, of course, completely false that only religion teaches right from wrong. There have been many great moral and ethical teachers who were not religious. Religion may also teach right from wrong; but in many instances religions have failed badly in their moral standing.

From
John Wilkins
Author of
Evolution and Philosophy
Response
Evolutionary biology does not teach that all, or even most, organisms act selfishly. This is a misunderstanding of the book The Selfish Gene by Richard Dawkins. It does not, despite that title, even teach that genes act selfishly. Genes are stretches of molecules too simple to act selfishly or altruistically.

The story is this: in the 1950s, a branch of mathematics was formed called "game theory", which was the logic of decision making of ideally rational agents. It was soon discovered that this logic worked pretty well for a range of things that could not be rational agents. For a start, it worked in international disputes, in economics, and, as it turned out, in evolutionary biology.

These mythical ideally rational agents were "egoists" (not to be confused with "egotists", who think they are the most important people in the world; eogism is the view that all rational acts must be of direct value to the actor). This is to say, anything that game theory can describe, can be thought of as acting selfishly, coldly calculating their best interests. Why does it work for genes?

It turns out that evolution can be treated, as a first approximation, as if genes cared about their long term fitness, and strove to maximise it. Of course they don't; this is an illusion created by the fact that genes that are fitter than other genes do "behave" as if they were rational egoists. But all this amounts to is to say that evolution proceeds in ways that game theory can describe and predict.

In fact, these "rational egoist genes" can evolve cooperation in the most unusual cases. A classical book in economics - The Evolution of Cooperation by Robert Axelrod - shows how cooperation between kin and "like-minded strategists" can cause cooperative and altruistic behaviours (at the organism level) to evolve because they increase the fitness of the "selfish" genes.

One final point. You are quite correct that statements of fact ("is" statements) can never imply statements of value ("ought" statements). In fact, the origins or causes of something like altruistic behaviour do not make it worthwhile or bad. You can give it the value you want for other reasons no matter whether it is based on religion or on science. I happen to prefer a world full of altruism. It doesn't matter whether the individuals are altruistic because they believe in God or because they believe it is a survival-maximising strategy.

Entry 28

Feedback Letter

From
Philip Ballou
Comment
About evolution. if simple life forms are inherently more efficient, then how could life have evolved past the simplest forms. Like the jump from single celled, self sufficient organisms, to multicellular organisms. Or from asexual reproduction to sexual reproduction. Wouldn't sexual reproduction be incredibly less efficient than asexual reproduction? And really, what are the chances of a solar system just spontaneously forming from an explosion? Has this ever been recreated in experiments by NASA in a low gravity enviorment? Then let's think about the sea anenome. Admittedly the sea anenome has no nervous system. Yet it has different types of cells working in tandem to produce metabolism. There are cells in the sea anenome that get nutrients from certain cells, transport and then deliver those nutrients to other cells. All without a nervous system. And honestly, how can you explain the random formation of the sub atomic structure, without which, none of the rest of the "life" chain would work?

Just because you don't believe in creationism, please don't just spout this evolution stuff out as fact or some "sacred" theory. I mean, really. Think about it. Give me something here. I can't really believe in evolution as the theory is currently being preached by knee-jerk atheists. Thanks.

Responses

From
Wesley R. Elsberry
Response

The first rule of responding to antievolution claims is never take an antievolution claim about biology as settled. If they claim the sky is blue, be sure to look out a window before agreeing. In this case, the claim that sea anemones have no nervous system is simply incorrect. They do have a nervous system arranged as a nerve net. There is no brain or central ganglion, but they do have neurons doing their thing. Some jellyfish (jellyfish and sea anemones both being in the same phylum) even have camera eyes and are able to do some image processing.

The truth value of evolutionary biology is not affected by who accepts it. Once one starts discounting concepts because pusillanimous people have embraced them, one would have to disavow most of the things taught in our culture, because pusillanimous people are so ubiquitous.

Wesley

From
Chris Ho-Stuart
Response
Simple life forms have always dominated life on Earth, but they are not inherently more efficient in every circumstance.

It is not clear what you mean by efficient. There are advantages that come with sexual reproduction; and life forms have developed which use both sexual and asexual.

The solar system did not form from an explosion. It formed as a rotating cloud of dust and gas compressed under its own gravitational field. The full details of the mechanics are complicated and still being investigated; but the accumulation of particles into bodies in orbit about each other is an inevitable consequence of known Newtonian physics; so the probability of solar systems forming is 1.

The sea anemone gets along just fine without a central* nervous system. Do you think this means all organisms should similarly have evolved without central nervous systems? But evolution predicts diversity; not uniformity.

The word "random" with respect to atomic structure is odd. Atomic physics and chemistry, proceeds according to natural laws which we can study. You may attribute the fundamental laws of nature to God, if you like; science does not address that metaphysical question. But why call it "random"? There are powerful regularities in how things behave, which is why science works at all.

Your final paragraph shows the real problem. You instinctively think of scientific study of the natural world — how atoms behave, how interstellar nebulae contract, how life forms diversify — as an atheistic rejection of religious explanations. That is, you are effectively setting up natural explanations for things as meaning that God is not involved. That is a strange principle for someone who believes in a God who is the author and maintainer of all things. You also describe science as a kind of sacred set of unquestioned precepts analogous to the narrow minded religious literalism which underlies creationism.

But that is not so. Christians and atheists can equally use the same tools of science to study the natural world. Biological evolution is a scientific model like any other. In fact, evolution stands in relation to biology much as the periodic table stands in relation to chemistry.

It is true that many scientists are atheists; and that many contributors to this archive are non-believers. But on the other hand, there are many scientists who are Christians, and some of the major contributors to this archive are Christians. You simply can't tell only by reading their scientific writings; the science and the data is the same in any case.

You may have heard the famous phrase Nothing in biology makes sense except in the light of evolution. This was by one of the major developers of the "New Synthesis" of evolutionary biology with genetics back in the 1970s: Theodosius Dobzhansky. Dobzhansky is an example of a leading and hugely influential evolutionist who was also a devout Christian.

You will never manage to learn about science until you can look at the evidence and the arguments plainly without thinking of it as some atheistic conspiracy. It isn't.

(*) I added the word central here thanks to Wesley's observation.

From
Chris Ho-Stuart
Response
Thanks for the reminder, Wesley.

Philip may have meant no central nervous system; which is indeed a feature of the Cnidaria (Hydra, Jellyfish, Anemones); I have amended my original response by including this word.

I may have been lax in checking details here because I had in mind the old story about Ciona intestinalis, or "sea squirt" (a tunicate, not an anemone). The larvae of this organism has a simple central nervous system of 330 cells, of which less than 100 are neurons. The larvae swim freely for a couple of days, after which they metamorphose into an adult form, which is a sessile filter feeder permanently fixed in place on some rock. As part of the metamorphosis, most of the nervous system is consumed, since there is no more need for it. Daniel Dennet in Consciousness Explained made the famous observation that this is "rather like getting tenure".

I am startled to learn that some Jellyfish have complex eyes, despite lacking a brain. Checking claims is a great idea, including claims from a fellow evolutionist. Your claim checks out. The cubozoan jellyfish Carybdea marsupialis has 24 eyes, 8 of which are complex eyes including a lens. (Refs: [1], [2], [3])

Entry 29

Feedback Letter

From
Jeff Greenland
Comment
What about the foreward which is in Darwin's "Origins of Species" which basically says that evolution in no way can be proven? Also, you are getting away from the point, it doesn't really matter whether evolution occurred happened, it matters whether there is a God. I choose not to point every inaccuracy on your website but I will say this: shape up or a child will be able to humiliate you with simple things even children understand. Also, have you ever been to an asylum? (no point to anything, just wanting to know)

Response

From
Kenneth Fair
Response
Hmm. When I read the introduction to On the Origin of Species, I do not see any assertion that evolution cannot be proven. To the contrary, Darwin seems to me to be saying that his questions about the origin of species and varieties are difficult ones requiring careful examination of the evidence, and indeed, further investigation:

Although much remains obscure, and will long remain obscure, I can entertain no doubt, after the most deliberate study and dispassionate judgement of which I am capable, that the view which most naturalists entertain, and which I formerly entertained -- namely, that each species has been independently created -- is erroneous.

I'm not sure whose "point" it is to which the reader is referring, or why there may be only one "point" under consideration. The point of this archive, as its welcome message should make clear, is to set forth for the public the mainstream scientific view on questions of origins, in response to pseudoscientific claims by a variety of individuals and organizations.

Overall, this archive takes no position on religious matters, to the extent that assertions about those matters comport with mainstream science. Contributors to this archive hold a variety of religious views, from strong atheism to evangelical Christianity. Certainly, one need not reject God, Christianity, or other faiths to accept evolution, as the article on God and Evolution sets forth.

As for the reader's comment about children, perhaps it is time for the reader to relinquish a child-like view of religion, science, and the Universe, and to discover a more adult perspective.

Entry 30

Feedback Letter

From
Robert Hubbard
Comment
I have been conducting a lengthy and largely fruitless debate concerning evolution with a dedicated creationist. One of his most amazing arguments against the utility of radiometric dating is that it has never been used to "match a known date in history". He excludes C14 dating in this argument; all the other techniques are of no consequence because they have never passed this very bizarre test.

I believe there are numerous cases which contradict his assertions, but I am unable to find a clear reference to them. I recall reading that radioactive fallout produced during atmospheric testing was employed as atracer in aquifers and glaciers; I believe radiometric dating of recent cave formations has also been conducted. Dating of recent and historically documented lava flows would also serve.

Your input would be most welcome.

Response

From
Chris Stassen
Author of
Isochron Dating
Response
An interesting example is: P. R. Renne, W. D. Sharp, A. L. Deino, G. Orsi, and L. Civetta, 1997. "40Ar/39Ar Dating into the Historical Realm: Calibration Against Pliny the Younger," in Science (August 29); vol. 277: pp. 1279-1280.
Entry 31

Feedback Letter

From
Jeff Polston
Comment
The Institute for Creation Research lists Los Alamos lab geologist John R. Baumgardner as a believer in a young earth, of only a few thousand years old. Indeed, there are several articles by Baumgardner on the site.

But when it comes to his professional life and getting a paycheck, apparently he believes in a very old earth, or according to this article I found, an earth that is at least 150 million years old: Plate subduction clues disappear after 150 million years

I wonder how many pieces of silver Baumgardner gets for his work at the Los Alamos Labs? :)

Entry 32

Feedback Letter

From
David
Comment
This is a very interesting website. I am a reformed (recovering) evangelical Christian myself (my father is a pretty famous nationally syndicated radio preacher). I am now an archaeologist working in Africa. It is great that you are taking the time to explain things so clearly to a broad audience. This is something I will share with students of mine who have questions of the same nature that I did when I was 18 years old.

I have a comment to direct to "Damon" who responded in August which I felt wasn't addressed too well by Wesley. He asks about Mount St. Helens and the inaccuracies of radiocarbon dating of this material.

First of all, radiocarbon dating is only good for organic material preserved for 50,000 years, not 100,000 years. I have seen material dated to 60,000 years, but it is dubious at best because the decay is so profound at that point that there is not enough carbon material left to get a meaningful date from. Even mass spectrometry ages are incapable of getting a meaningful estimate prior to 50,000 years ago.

Second, all radiocarbon dating is calibrated to AD 1950. Besides being the year that Libby discovered the basics of the method, it is also because after that, the amount of atmospheric carbon in the global atmospheric reservoir skyrockets due to the fact that we have tested so many nuclear weapons. Thus, any sample that died after 1944 (the year that the first atom bomb was exploded) is wildly inaccurate due to the absorption of as much as 100 times the atmospheric carbon (C13) as before that event. Dating any sample would produce wild results because it is impossible to calibrate that much atmospheric variability and could conceivabley register 100s of 1000s years' difference between samples collected that died on the same day. I seriously doubt that anyone who knows anything about radiocarbon dating would waste $400 on testing that theory, because it has been well-known since the 1960s.

Also, radiocarbon can only date organic material. Not tephra or volcanic ash. That is well presented in your summaiton of radiocarbon dating, but should be clarified here.

Good luck with your site!

Entry 33

Feedback Letter

Comment
I am responding to the FABNAQ page, question 1b. I was not aware that many Christians are evolutionists. I would like to know where that information came from. I would also like the names of 1,000 professing Christians that are evolutionists, to back up the question's claim. Otherwise there is no good reason for anyone to answer that question, because it is then false by definition, according to logical analysis.

Response

From
Mark Isaak
Response
You should get out more; Christianity is bigger than you suppose. See, for example, NCSE's Voices for Evolution: Statements from Religious Organizations. According to polls, approximately 50% of Americans are creationists, and over 90% are Christian. Even the smallest possible overlap gives tens of millions of Christians accepting evolution in the United States. There are certainly many more, probably hundreds of millions, outside the U.S. I'm sure you could find 1000 of them if you looked.
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