Tag Archives: Evolution

Polemics

How brief was the period in which the Cambrian phyla suddenly appeared?

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The Cambrian explosion refers to the sudden appearance of new body plans in the fossil record. ID proponents think that the period is between 5-10 million years at the most. Naturalists want to stretch out the period in which the body plans appear to tens of millions of years. The two sides can’t both be right. What’s the truth?

Evolution News has the answer.

Excerpt:

To establish the length of the most explosive period of innovation within the Cambrian explosion itself, Meyer cites the work of MIT geochronologist Samuel Bowring and his colleagues as well the work of another group led by Smithsonian paleontologist Douglas Erwin. The Bowring-led study showed that (in their words) “the main period of exponential diversification” within the Cambrian lasted “only 5-6 million years” (emphasis added). Meyer explains:

An analysis by MIT geochronologist Samuel Bowring has shown that the main pulse of Cambrian morphological innovation occurred in a sedimentary sequence spanning no more than 6 million years. Yet during this time representatives of at least sixteen completely novel phyla and about thirty classes first appeared in the rock record. In a more recent paper using a slightly different dating scheme, Douglas Erwin and colleagues similarly show that thirteen new phyla appear in a roughly 6-million-year window. (p. 73)

[…][T]ake a look first at the following figure that Bowring and his colleagues included in their definitive 1993 article, published in the journal Science. They use radiometric methods to date the different stages of the Cambrian period, including the crucial Tommotian and Atdabanian stages in which the greatest number of new animal phyla and classes arise. Note that the so-called Manykaian stage of the Cambrian period lasts about 10-14 million years. Note also that the main pulse of morphological innovation didn’t begin during this stage but rather during the Tommotian and Atdabanian — a period that they describe as taking between “5 to 10 million years,” and in a more detailed passage as taking about 5-6 million years.

[…]In the figure above, the Tommotian and Atdabanian stages of the Cambrian period together span only about 5 million years, starting at about 530 and ending about 525 million years ago. Bowring’s figure also depicts the total number of classes and orders present at any given time during the Cambrian period. The biggest increases in morphological innovation occur during the Tommotian and Atdabanian stages. Indeed, during this period the number of known orders nearly quadruples. Moreover, Bowring and his colleagues also make clear that this period corresponds to the main pulse of Cambrian morphological innovation as measured by the number of new phyla and classes that first appear. They note that, while a few groups of animals do arise in the earliest Manykaian stage of the Cambrian, the most rapid period of “exponential increase of diversification,” corresponding to the Tommotian and Atdabanian stages, “lasted only 5 to 6 m.y.”

You can see the figure they are reference in the Evolution News article.

Also, check out these clips that explain the Cambrian explosion:

Part 1:

Part 2:

The first clip features James Valentine, a professor of biology at the University of California who just co-authored a new book on the Cambrian explosion and is not a proponent of intelligent design.

The consensus among scientists regarding the period of time in which the new body plans appear is 5-6 million years. Biologically speaking, that’s a blink of an eye. You aren’t going that kind of complexity and innovation in such a short period of time any more than you can expect to win the lottery by buying 5-6 million tickets when the odds of winning are 1 in a googol (10 to the 100th power – 1, followed by 100 zeroes). You don’t have enough lottery tickets to make winning the lottery likely. Similarly, 5-6 million years is not enough time for naturalistic mechanisms to code brand new body plans from scratch. It would be like trying to research and write a Ph.D thesis during a single lunch hour. It’s just not enough time to produce the amount of information that’s required.

News

Can a person believe in both God and Darwinian evolution?

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Christianity and the progress of science
Christianity and the progress of science

The term for a person who believes in fully naturalistic evolution but who also believes in God is “theistic evolutionist”.

Terrell Clemmons takes a look at one organization of theistic evolutionists “Biologos”, and makes a distinction between their public statements and the real implications of their public statements.

Here is the PR / spin definition of theistic evolution:

Evolutionary creation is “the view that all life on earth came about by the God-ordained process of evolution with common descent. Evolution is a means by which God providentially achieves his purposes in creation.” This view, also called theistic evolution, has been around since the late nineteenth century, and BioLogos promotes it today in a variety of religious and educational settings.

And here is the no-spin definition of theistic evolution:

As Dr. Stephen Meyer explains it, the central issue dividing Bio-Logos writers from intelligent design theorists is BioLogos’s commitment to methodological naturalism (MN), which is not a scientific theory or empirical finding, but an arbitrary rule excluding non-material causation from the outset. “Unfortunately,” Meyer writes,

methodological naturalism is a demanding doctrine. The rule does not say “try finding a materialistic cause but keep intelligent design in the mix of live possibilities, in light of what the evidence might show.” Rather, MN tells you that you simply must posit a material or physical cause, whatever the evidence.

What this means, according to BioLogos’s own epistemology, is that God is objectively undiscoverable and unknowable—a tenet that sits squarely at odds with Christian orthodoxy, which has for centuries held that God is clearly discernible in the natural world (e.g., Romans 1:20). Obviously, this is theologically problematic, but Meyer also points out that theistic evolution faces problems from a scientific standpoint as well, as the technical literature among evolutionary biologists is moving away from the Darwinian mechanism.

Whenever I talk to theistic evolutionists, I try to stop them from talking about the Bible or their faith, because that’s not what is interesting to me. I don’t really care about their history as a religious person, or where they go to church, or who their pastor is. When I talk about origins and evolution, I only care about the science. What the ordinary process of scientific inquiry tells us about nature? Does nature have the capacity to create all of the varieties of life without any intelligent agency playing a role? Or, are there parts of nature that are similar to computer programs, blog posts, and term papers, where the best explanation of the effect is an intelligent agent choosing how to arrange the parts to achieve functionality?

I don’t accept molecules-to-man unguided evolution. This is not because I start with faith and let faith override the findings of science. It’s because I think that if you look at specific areas of natural history, there is clear evidence of intelligent agency, such as in the origin of life, or the Cambrian explosion. These effects in nature are well-studied and well-understood, and they look much more like the code that a computer scientist (like me) writes than the simplistic “order” created by wind erosion or crystalline patterns or anything the blind forces of nature could produce. Blind forces are observed to make small changes – short or long finch beaks, fruit flies with 4 wings and no balancers, bacterial resistances.

What’s also interesting is how often theistic evolutionists drop the theism but keep the evolution.

Consider this article about Stephen Matheson from Evolution News:

Biologist Stephen Matheson is a longtime critic of the theory of intelligent design. His extensive attacks on Stephen Meyer’s Signature in the Cell, for one, ranged from the substantive to the trivial and personal. The tone was frequently…abrasive, and we responded at the time. With Arthur Hunt, Dr. Matheson has debated Dr. Meyer in a forum at Biola University. Formerly a professor at an Evangelical Christian school, Calvin College, Matheson is still listed as a Blog Author at the theistic evolutionary website BioLogos, where it notes that he enjoys “explor[ing] issues of science and Christian faith.”

Well, his theistic evolutionary explorations have now terminated. As he reports on his personal blog page, where he took a hiatus of more than five years along with a break from his teaching, he is “happily” no longer a Christian.

OK. Now that’s just one case, but what about Howard Van Till, also of Calvin College?

Salvo magazine takes a look at what he wrote in a recent book:

In what follows I shall use the term “naturalism,” when unqualified, to represent neither more nor less than the rejection of supernaturalism. Stated positively, naturalism is committed to the belief that all events that occur within this Universe are consistent with and adequately explained by the system of natural causes. This commitment necessarily entails the additional belief that the system of natural causes is fully adequate to account for all events that transpire. Focusing on the issue of the Universe’s formational economy, we can say that naturalism—as here defined -entails the RFEP.

He now gives presentations for atheist groups entitled “From Calvinism to Freethought”. Freethought is a euphemism for atheism.

Now, for the big three Western monotheistic religions: Christianity, Judaism and Islam. To deny supernaturalism IS to deny the robust theism present in the world’s big three monotheistic religions. Van Till denies theism as commonly understood now. And again, this isn’t because of the science. His heavy handed naturalistic assumption squashed out any kind of serious inquiry into areas like the origin of the universe, the cosmic fine tuning, the origin or life, the Cambrian explosion, biological convergence, so-called junk DNA, deleterious mutations, and so on. Places where you can see that naturalistic forces cannot do the creating that Van Till has faith that they can.

And for the record, I am an enthusiastic supporter of the standard Big Bang cosmology, and a 4.5 billion year Earth. My problem with evolution is not Bible-based, it’s science-based. If the science shows the need for intelligent causes, and I think it does, then I think that the naturalists need to adjust their assumptions and pre-suppositions to match the evidence. We have blog posts and computer science code, that’s evidence for a programmer. We have DNA and proteins and sudden origin of body plans, that’s evidence for a programmer, too.

Videos

William Lane Craig debates Peter Atkins: Does God Exist?

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Here is the video of a debate with Peter Atkins, from the Reasonable Faith speaking tour in the UK:

This is a must-see debate. It was extremely fun to watch.

Details:

On Wednesday 26th October 2011 William Lane Craig debated Peter Atkins on the topic: Does God Exist? This debate took place at the University of Manchester  as part of the UK Reasonable Faith Tour with William Lane Craig. The debate was chaired by Christopher Whitehead, Head of Chemistry School at the University. Post-debate discussion was moderated by Peter S Williams, Philosopher in Residence at the Damaris Trust, UK.

Dr. William Lane Craig:

William Lane Craig (born August 23, 1949) is an American analytic philosopher, philosophical theologian, and Christian apologist. He is known for his work on the philosophy of time and the philosophy of religion, specifically the existence of God and the defense of Christian theism. He has authored or edited over 30 books including The Kalam Cosmological Argument (1979), Theism, Atheism and Big Bang Cosmology(co-authored with Quentin Smith, 1993), Time and Eternity: Exploring God’s Relationship to Time (2001), and Einstein, Relativity and Absolute Simultaneity (co-edited with Quentin Smith, 2007).

Craig received a Bachelor of Arts degree in communications from Wheaton College, Illinois, in 1971 and two summa cum laudemaster’s degrees from Trinity Evangelical Divinity School in Deerfield, Illinois, in 1975, in philosophy of religion and ecclesiastical history. He earned a Ph.D. in philosophy under John Hick at the University of Birmingham, England in 1977 and a Th.D. underWolfhart Pannenberg at the University of Munich in 1984.

Dr. Peter Atkins:

Peter William Atkins (born 10 August 1940) is a British chemist and former Professor of Chemistry at the University of Oxford and a Fellow of Lincoln College. He is a prolific writer of popular chemistry textbooks, including Physical Chemistry, Inorganic Chemistry, and Molecular Quantum Mechanics. Atkins is also the author of a number of science books for the general public, including Atkins’ Molecules and Galileo’s Finger: The Ten Great Ideas of Science.

Atkins studied chemistry at the University of Leicester, obtaining a bachelor’s degree in chemistry, and – in 1964 – a PhD for research into electron spin resonance spectroscopy, and other aspects of theoretical chemistry. Atkins then took a postdoctoral position at the UCLA as aHarkness Fellow of the Commonwealth fund. He returned to Oxford in 1965 as fellow and tutor of Lincoln College, and lecturer in physical chemistry (later, professor of physical chemistry).

You can get the audio of the debate here, along with links to their previous debate from 1998. This debate is accessible and understandable to novice-level Christians.

I am happy when debates like this come out. I have friends who are Christians who doubt the importance of apologetics in evangelism, because they don’t think that apologists can prove anything or win arguments. I have friends who are skeptical of using arguments that assume a 14-billion year old universe, because they think that the Big Bang is compatible with atheism (!). I have friends who think that philosophical arguments have no persuasive force. I have friends who think that nothing can be proven from history, beyond a reasonable doubt. I have co-workers who ask me whether anyone wins these debates. I think that this debate answers all of those questions.

This debate clearly shows why Christians should not shy away from studying science, philosophy and history. We will not discover anything that harms Christian theism by thinking logically and by looking at the evidence. To the contrary, it is the atheist who makes war on the progress of science, and who is forced to resist the clear experimental evidence, and to resort to baseless speculations and blind faith. If you want to see a good debate with an intelligent atheist, I recommend watching the debate between William Lane Craig and Peter Millican instead. But if you want to see a really, really overwhelming defeat for atheism, watch this debate. It is very clear at the end of this debate why Richard Dawkins refused to debate William Lane Craig at Oxford.

SUMMARY OF THE OPENING SPEECHES

I only had time to summarize the first two speeches. Keep in mind that Dr. Craig always shines in his rebuttals, and this debate is no different. So you’ll want to watch those rebuttals. Dr. Atkins literally says in this debate in his first rebuttal “There was nothing here originally. There is nothing here now. But it is an interesting form of nothing which seems to be something.” And the audience laughs nervously. This debate is like that. You will see a clear winner and clear loser in this debate. This fight is decided by knockout.

William Lane Craig opening speech:

1. the origin of the universe
2. the moral argument
3. the resurrection of Jesus

Peter Atkins opening speech:

1. Dr. Craig is stupid, lazy and evil:
– Dr. Craig’s arguments are old: from the 11th century! Old arguments can’t be true
– Dr. Craig is just asserting that “God did it” because he is lazy
– Dr. Craig feels pressured to agree with the theistic majority
– Dr. Craig needs a psychological crutch to comfort him
– Dr. Craig is fearful of death
– Dr. Craig is just wishing for an eternal life of bliss
– Dr. Craig is driven by his heart, and not by his head

2. Origin of the universe:
– Maybe the universe is eternal and has no beginning – we don’t know
– Maybe mommy universes can give birth to daughter universes
– It is naive to think that a cause is needed to cause the creation of the universe from nothing
– Science is just about to show how it is possible that something appears out of nothing without cause
– Some scientists have already begun to speculate about about how something can come into being out of nothing
– Maybe nothing is not really nothing, but it is actually something
– It would be admitting defeat to say that God created the universe out of nothing

3. Fine-Tuning:
– It could be the case that the fundamental constants are not variable
– It could be the case that the fine-tuning of the cosmic constants is a happy accident
– It could be the case that there are billions of billions of unobservable universes that are not fine tuned
– It could be the case that the cosmic constants in these billions and billions of unobservable universes are all random so that some are fine-tuned
– Anyone who infers that an intelligence is the best explanation of a finely-tuned set of life-permitting cosmic constants is lazy

4. Purpose:
– Philosophers and theologians are stupid
– I don’t think that there is purpose in the universe
– I think that the universe is more grand if there is no purpose, so there is no purpose

5. Miracles:
– I don’t think that miracles happen
– The resurrection is a fabrication
– It could be the case that Jesus didn’t exist
– It could be the case that Jesus wasn’t really crucified
– It could be the case that Jesus didn’t  really die after being crucified
– It could be the case that the disciples stole his body
– It could be the case that the women went to the wrong hole in the ground
– the gospels are political propaganda written long after the events they are reporting on

6. Theodicy:
– God has no morally sufficient reason for allowing humans to perform actions that result in suffering
– God has no morally sufficient reason for allowing nature to cause suffering

7. Morality:
–  customs and conventions emerges arbitrarily in different times and places based on an awareness of the consequences of actions, as well as various anecdotes and experiences
–  these customs and conventions are decided based on the goal for survival, in much the same way as politeness and manners emerge for decorum and to avoid offense
– it is childish to presume that there is an umpire God who decides moral values and duties

8. Religious believers are stupid, lazy and evil:
– the notion of God has arisen because people are stupid and want to be comforted
– there are no arguments or evidences for belief in God
– people who believe in God do not think, but instead take refuge in incomprehensible nonsense