Tag Archives: Evolution

Podcasts

Philip E. Johnson lectures on science, evolution and religion

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I found this fun lecture by the grandfather of the big-tent intelligent design movement, Berkeley law professor Philip E. Johnson.

I’ll bet you guys have all heard of him, but you’ve never heard him speak, right? Well, I was a young man, I used to listen to Phil’s lectures and his debates with Eugenie Scott quite a bit. This is one of my favorite lectures. Very easy to understand, and boilerplate for anything else in the origins debate. This is a great lecture – funny, engaging and useful. You will definitely listen to this lecture several times if you listen to it once.

The MP3 is here. (91 minutes, 62 megabytes)

The Inherit the Wind stereotype

  • Many people get their understanding of origins by watching movies like “Inherit the Wind” (or reading science fiction)
  • The actual events of the Scopes trial are nothing like what the movie portrays
  • The law forbidding the teaching of evolution was symbolic, not meant to be enforced
  • The actual Scopes trial was a publicity stunt to attract attention to Dayton, TN to bring business to the town
  • The ACLU advertised for a teacher who would be willing to be sued
  • They found a substitute physical education teacher who would be willing to “break” the law
  • The movie is nothing like the actual events the movie is a morality play
  • The religious people are evil and stupid and ignorant and bigoted
  • The scientists and lawyers are all intelligent, romantic, and honest seekers of the truth
  • The religious people think that the Bible trumps science and science is not as reliable as the Bible
  • The movie argues that the reason why there is ANY dissent to evolution is because of Biblical fundamentalism
  • The movie presents the idea that there are no scientific problems with evolution
  • The movie says that ONLY Biblical fundamentalists who believe in 6 day, 24-hour creation doubt evolution
  • The movie says that Biblical fundamentalism are close-minded, and not open to scientific truth
  • The movie says that people who read the Bible as making factual claims are misinterpreting the Bible
  • The movie says that smart people read the Bible for comfort and feelings and arbitrary values, not for truth

Guided evolution and methodological naturalism

  • What scientists mean by evolution is that fully naturalistic, unguided, materialistic mechanisms caused the diversity of life
  • Scientists do not allow that God had any real objective effect on how life was created
  • Scientists think that nature did all the creating, and any mention of God is unnecessary opinion – God didn’t DO ANYTHING
  • Scientists operate with one overriding rule – you can only explain the physical world with physical and material causes
  • Scientists DO NOT allow that God could have done anything detectable by the sciences
  • Scientists WILL NOT consider the idea that natural, material processes might be INSUFFICIENT for explaining everything in nature
  • You cannot even ask the question about whether natural laws, matter and chance can explain something in nature
  • Intelligent causes can NEVER be the explanation for anything in nature, and you can’t even test experimentally to check that
  • Scientists ASSUME that everything can be explained with natural laws, matter and chance – no questioning of natural causes is allowed
  • Where no natural explanation of a natural phenomenon is available, scientists SPECULATE about undiscovered natural explanations
  • The assumption of naturalistic sufficiency is called “methodological naturalism”
  • To question the assumptions that natural is all there is, and that nature has to do its own creating, makes you an “enemy of science”
  • But Johnson says that naturalists are the enemies of science, because they are like the Biblical fundamentalists
  • Naturalists have a presumption that prevents them from being willing to follow the evidence where it is leading
  • Experiments are not even needed, because the presumption of naturalism overrides any experimental finding that falsifies the sufficiency of natural causes to explain some natural phenomenon

What can natural selection and mutation actually do?

  • what evolution has actually been observed to do is explain changing populations of moths and finches
  • finches with smaller or larger beaks are observed to have differential survival rates when there are droughts or floods
  • no new body plan or new organ type has been observed to emerge from these environmental pressures
  • the only kind of evolution that has been observed is evolution within types – no new genetic instructions are created
  • in textbooks, only confirming examples are presented – but what is required is a broad pattern of gradual development of species
  • if you look at the fossil record, what you see in most cases is variation within types based on changing environments
  • the real question is: can natural law and chance be observed to be doing any creating of body plans and organ types?

What kind of effect requires an intelligent cause?

  • the thing to be explained in the history of life is the functional information sequences
  • you need to have a sequence of symbols or characters that is sufficiently long
  • your long sequence of characters has to be sequenced in the right order to have biological function
  • the only thing that can create long sequences of functional information is an intelligent cause
  • intelligent design people accept micro-evolution – changes within types – because that’s been observed
  • the real thing to be explained is the first living cell’s functional information, and the creation of new function information

Critical response

The next 15 minutes of the lecture contain a critical response from a philosophy professor who thinks that there have been no developments in design arguments since Aquinas and Paley. He basically confirms the stereotypes that Johnson outlined in the first part of the lecture. I recommend listening to this, because it shows how weak the counter arguments are, and how these pseudo-intellectuals mislead unprepared students to question their Christian faith – especially dangerous since they have the power of the grading pen. Notice especially how he never mentions any arguments that Christians actually use, nor does he mention any actual science. Everything is “words, words, words” as Hamlet might say – no talking about experiments.

Here’s what he says:

1) Don’t take the Bible literally, even if the genre is literal.

  • all opposition to evolution is based on an ignorant, fundamentalist, literal reading of the Bible
  • Christians need to reinterpret the Bible so that it is basically relaying personal preferences, and not factual information, regardless of the genre intended
  • the Bible really doesn’t communicate anything about the way the world really is
  • the Bible is just meant to suggest certain opinions and experiences which you may find fetching, or not, depending on your feelings and community
  • if Christians would just interpret the Bible as myths and opinions on par with other personal preferences, then evolution is no threat to religious belief

2) As long as you treat the design argument as divorced from evidence, it’s not very effective

  • the latest and best version of the design argument is Paley’s argument which involves no experimental data, so I’ll critique that
  • this 200-year old argument which doesn’t rely on science has serious problems, and unnamed Christians agree with me!
  • Christians should NOT try to prove God’s existence using evidence from the natural world (as Romans 1 says), and in fact it’s “Pelagianism” to even try
  • Christians should divorce their faith from logic and evidence even though the Bible says that Jesus performed miracles to supply evidence for his claims
  • Christians should not tie their faith to the best science available today, because science is always changing – what happens if we discover that the universe is eternal tomorrow?
  • What if! What if! Just because you guys have the facts on your side today, tomorrow science might prove that the universe is eternal! What would you do then?
  • It’s a good idea for me to critique the arguments of 1000-year old people who did not know anything about the cosmic fine-tuning argument – that’s fair!
  • I find it very useful to tell people that the argument from design is false without mentioning any scientific evidence of design from things like DNA and fine-tuning
  • We need to assume that the natural world is explainable using only natural causes
  • We should assume that natural causes create all life, and then rule out all experimental evidence for intelligent causes that we have today
  • As long as you accept that God is a personal opinion that has nothing to do with reality, then you can do science
  • The non-Christian process theologian Teilhard de Chardin is actually a Christian, and he accepts evolution, so quit complaining you ignorant fundies!
  • Remember when theists said God caused thunder because he was bowling in the clouds and then we found out he didn’t? Yeah well – maybe tomorrow we’ll find out that functional sequences of amino acids and proteins have natural causes! What would you do then?

3) What the Bible really says is that you should be a political liberal

Q&A time

The lecture concludes with 13 minutes of questions.

Podcasts

Does it makes sense to be good on atheism? Scholars debate atheism and morality

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This was the question debated by two scholars Sean McDowell and James Corbett. The audio was posted on Apologetics 315.

The debaters

Sean McDowell: Head of the Bible Department at Capistrano Valley Christian Schools, where he teaches the courses on Philosophy, Theology, and Apologetics. He graduated summa cum laude from Talbot Theological Seminary with a double Master’s degree in Theology and Philosophy. He is pursuing a Ph.D. in Apologetics and Worldview Studies from Southern Baptist Theological Seminary. Sean received the “Educator of the Year” for San Juan Capistrano, California in 2008.

Dr. James Corbett: Dr. James Corbett is a popular history teach in Capistrano Valley High School. On April 30, 2010 US District Court Judge James Selna ruled that he had violated the First Amendment by disparaging Christians during a classroom lecture. His reference to religion as “superstitious nonsense” was recorded by a student, Chris Farnan, who subsequently filed the lawsuit.  He has a Ph.D. in communication-journalism from Ohio State University; master’s from San Diego State University; bachelor’s from Syracuse University.

Here is the MP3 file of the debate.

Sean’s case is similar to the one I make, but he only has 3 minimal requirements for morality.

First, he explains the difference between objective and subjective truth claims, and points out that statements of a moral nature are meaningless unless morality is objective. Then he states 3 things that are needed in order to ground objective morality.

  1. an objective moral standard
  2. free will
  3. objective moral value of humans

The question of the foundations of morality is without a doubt the easiest issue for beginning apologists to discuss with their neighbor. If you’re new, then you need to at least listen to his opening speech. He’s an excellent speaker, and his rebuttals are very, very smooth. The citations of atheist philosophers like Walter Sinnott-Armstrong, e.g. – to show that “religious” wars had nothing to do with religion, really hurt his opponent. He seems to cite prominent atheists like Thomas Nagel, Richard Taylor, Michael Shermer, etc., constantly in order to get support for his assertions. That took preparation. I can’t believe that McDowell is this calm in a debate situation.

When I listen to Frank Turek, he seems to struggle in his rebuttals. McDowell sounds like he foreknew exactly what his opponent would say and pre-wrote responses. He even had powerpoint slides made in advance for his rebuttals! I am not making this up – Corbett even remarked on it.

For those of you who want to understand how these things work, listen to the debate. There is a period of cross-examination if you like that sort of thing. I do!

News

Do non-coding segments of the genome provide evidence for common ancestry?

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From Evolution News.

Excerpt:

Darwin’s tree of life might be visible in DNA, if DNA didn’t conspire to scramble the signal.

Now that quite a few genomes have been published, a team from Australia and France went on a Darwin fishing trip in the gene pool. In the largest study of its kind to date, they examined microsatellite markers (tandem-repeated DNA motifs of 1-6 base pairs) that are widespread in eukaryotic genomes. If neo-Darwinism is correct, these non-coding stretches of DNA should reflect the tree of common ancestry by showing similar mutational patterns in related groups.

Well, they don’t. The paper by Meglecz, Neve, Biffin and Gardner in PLoS ONE is titled, “Breakdown of Phylogenetic Signal: A Survey of Microsatellite Densities in 454 Shotgun Sequences from 154 Non Model Eukaryote Species.” What went wrong?

As the title implies, the team checked 154 “non-model” species. Darwinian evolutionists tend to focus on the model species, like a particular roundworm, the fruit fly Drosophila melanogaster, and a species of watercress, because their genomes are complete and most researchers use them in experiments. Problem: they may or may not be representative:

Although information for model species is accumulating rapidly, it is insufficient due to a lack of species depth, thus intragroup variation is necessarily ignored. As such, apparent differences between groups may be overinflated and generalizations cannot be inferred until an analysis of the variation that exists within groupshas been conducted. In this study, we examined microsatellite coverage and motif patterns from 454 shotgun sequences of 154 Eukaryote species from eight distantly related phyla (Cnidaria, Arthropoda, Onychophora, Bryozoa, Mollusca, Echinodermata, Chordata and Streptophyta) to test if a consistent phylogenetic pattern emerges from the microsatellite composition of these species.

Sounds like a good test. After all, scientists shouldn’t generalize on overinflated signals, right? The team expected to find nicely behaved data interpolated between the model species. It wasn’t to be:

It is clear from our results that data from model species provide incomplete information regarding the existing microsatellite variability within the Eukaryotes. A very strong heterogeneity of microsatellite composition was found within most phyla, classes and even orders. Autocorrelation analyses indicated that while microsatellite contents of species within clades more recent than 200 Mya tend to be similar, the autocorrelation breaks down and becomes negative or non-significant with increasing divergence time. Therefore, the age of the taxon seems to be a primary factor in degrading the phylogenetic pattern present among related groups. The most recent classes or orders of Chordates still retain the pattern of their common ancestor. However, within older groups, such as classes of Arthropods, the phylogenetic pattern has been scrambled by the long independent evolution of the lineages.

There are two ways to interpret this anomaly. One is that microsatellites mutate too fast to maintain the phylogenetic signal. (This is known as a “post hoc rationalization.”)

The other is that Darwin was wrong. Data do not show a phylogenetic pattern; they show common design with some variation.

Read the rest here. I’m a skeptic on common ancestry, but not for religious reasons. I just don’t think that it’s compatible with the progress of science.