Tag Archives: Naturalism

Podcasts

Philip E. Johnson lectures on science, evolution and religion

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

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 that transpired
  • 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 functional information

Johnson’s case for intelligent design is rooted in science – specifically in the specific arrangements of components in proteins that allows organisms to perform biological functions.

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 to see what opposition to intelligent design really looks like. It’s not concerned with answering scientific questions – they want to talk about God, the Bible and Noah’s ark. It’s our job to get people like this critic to focus on the science.

Here’s my snarky rendition of what he said:

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
  • 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 the old Paley 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 presents faith as being rooted in reason and evidence
  • Christians should not tie their faith to the science of today, because science is always changing and the theism-friendly evidence of today might be overturned tomorrow
  • 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 design arguments from DNA or cosmic fine-tuning
  • We need to assume that the natural world is explainable using only natural causes before we look at any evidence
  • 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 accepts evolution, and therefore so should you
  • 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.

Polemics

MIT physicist Alan Lightman on fine-tuning and the multiverse

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

Here’s the article from Harper’s magazine.

The MIT physicist says that the fine-tuning is real, and is best explained by positing the existence of an infinite number of universes that are not fine-tuned – the so-called multiverse.

Excerpt:

While challenging the Platonic dream of theoretical physicists, the multiverse idea does explain one aspect of our universe that has unsettled some scientists for years: according to various calculations, if the values of some of the fundamental parameters of our universe were a little larger or a little smaller, life could not have arisen. For example, if the nuclear force were a few percentage points stronger than it actually is, then all the hydrogen atoms in the infant universe would have fused with other hydrogen atoms to make helium, and there would be no hydrogen left. No hydrogen means no water. Although we are far from certain about what conditions are necessary for life, most biologists believe that water is necessary. On the other hand, if the nuclear force were substantially weaker than what it actually is, then the complex atoms needed for biology could not hold together. As another example, if the relationship between the strengths of the gravitational force and the electromagnetic force were not close to what it is, then the cosmos would not harbor any stars that explode and spew out life-supporting chemical elements into space or any other stars that form planets. Both kinds of stars are required for the emergence of life. The strengths of the basic forces and certain other fundamental parameters in our universe appear to be “fine-tuned” to allow the existence of life. The recognition of this fine-­tuning led British physicist Brandon Carter to articulate what he called the anthropic principle, which states that the universe must have the parameters it does because we are here to observe it. Actually, the word anthropic, from the Greek for “man,” is a misnomer: if these fundamental parameters were much different from what they are, it is not only human beings who would not exist. No life of any kind would exist.

If such conclusions are correct, the great question, of course, is why these fundamental parameters happen to lie within the range needed for life. Does the universe care about life? Intelligent design is one answer. Indeed, a fair number of theologians, philosophers, and even some scientists have used fine-tuning and the anthropic principle as evidence of the existence of God. For example, at the 2011 Christian Scholars’ Conference at Pepperdine University, Francis Collins, a leading geneticist and director of the National Institutes of Health, said, “To get our universe, with all of its potential for complexities or any kind of potential for any kind of life-form, everything has to be precisely defined on this knife edge of improbability…. [Y]ou have to see the hands of a creator who set the parameters to be just so because the creator was interested in something a little more complicated than random particles.”

Intelligent design, however, is an answer to fine-tuning that does not appeal to most scientists. The multiverse offers another explanation. If there are countless different universes with different properties—for example, some with nuclear forces much stronger than in our universe and some with nuclear forces much weaker—then some of those universes will allow the emergence of life and some will not. Some of those universes will be dead, lifeless hulks of matter and energy, and others will permit the emergence of cells, plants and animals, minds. From the huge range of possible universes predicted by the theories, the fraction of universes with life is undoubtedly small. But that doesn’t matter. We live in one of the universes that permits life because otherwise we wouldn’t be here to ask the question.

I thought I was going to have to go outside this article to refute the multiverse, but Lightman is honest enough to refute it himself:

The… conjecture that there are many other worlds… [T]here is no way they can prove this conjecture. That same uncertainty disturbs many physicists who are adjusting to the idea of the multiverse. Not only must we accept that basic properties of our universe are accidental and uncalculable. In addition, we must believe in the existence of many other universes. But we have no conceivable way of observing these other universes and cannot prove their existence. Thus, to explain what we see in the world and in our mental deductions, we must believe in what we cannot prove.

Sound familiar? Theologians are accustomed to taking some beliefs on faith. Scientists are not. All we can do is hope that the same theories that predict the multiverse also produce many other predictions that we can test here in our own universe. But the other universes themselves will almost certainly remain a conjecture.

The multiverse is not pure nonsense, it is theoretically possible. The problem is that the multiverse generator itself would require fine-tuning, so the multiverse doesn’t get rid of the problem. And, as Lightman indicates, we have no independent experimental evidence for the existence of the multiverse in any case. Atheists just have to take it on faith, and hope that their speculations will be proved right. Meanwhile, the fine-tuning is just as easily explained by postulating God, and we have independent evidence for God’s existence, like the the origin of biological information, the sudden appearance of animal body plans, the argument from consciousness, and so on. Even if the naturalists could explain the fine-tuning, they would still have a lot of explaining to do. Theism (intelligent causation) is the simplest explanation for all of the things we learn from the progress of science.

We need to be frank about atheists and their objections to the progress of science. Within the last 100 years, we have discovered that the physical universe came into being out of nothing 15 billion years ago, and we have discovered that this one universe is fine-tuned for intelligent life. I don’t think it’s like that the last 100 years of scientific progress on the origins question are going to be overturned so that science once again affirms what atheists believe about the universe. Things are going the wrong way for atheists – at least with respect to science.

See it in action

To see these arguments examined in a debate with a famous atheist, simply watch the debate between William Lane Craig and Christopher Hitchens, and judge which debater is willing to form his beliefs on scientific progress, and which debater is forming his beliefs against the science we have today, and hoping that the good science we have today based on experiments will be overturned by speculative theories at some point in the future. When you watch that debate, it becomes very clear that Christian theists are interested in conforming their beliefs to science, and atheists are very interested in speculating against what science has shown in order to maintain their current pre-scientific view. That’s not what rational people ought to do when confronted with evidence.

Positive arguments for Christian theism

Podcasts

Cosmologist Luke Barnes answers 11 objections to the fine-tuning argument

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

This is from the blog Common Sense Atheism.

Atheist Luke Muehlhauser interviews well-respect cosmologist Luke Barnes about the fine-tuning argument, and the naturalistic response to it.

Luke M. did a good job explaining what was in the podcast. (I wish more people who put out podcasts would do that).

Details:

In one of my funniest and most useful episodes yet, I interview astronomer Luke Barnes about the plausibility of 11 responses to the fine-tuning of the universe. Frankly, once you listen to this episode you will be better equipped to discuss fine-tuning than 90% of the people who discuss it on the internet. This episode will help clarify the thinking of anyone – including and perhaps especially professional philosophers – about the fine-tuning of the universe.

The 11 responses to fine-tuning we discuss are:

  1. “It’s just a coincidence.”
  2. “We’ve only observed one universe, and it’s got life. So as far as we know, the probability that a universe will support life is one out of one!”
  3. “However the universe was configured, evolution would have eventually found a way.”
  4. “There could be other forms of life.”
  5. “It’s impossible for life to observe a universe not fine-tuned for life.”
  6. “Maybe there are deeper laws; the universe must be this way, even though it looks like it could be other ways.”
  7. “Maybe there are bajillions of universes, and we happen to be in one of the few that supports life.”
  8. “Maybe a physics student in another universe created our universe in an attempt to design a universe that would evolve intelligent life.”
  9. “This universe with intelligent life is just as unlikely as any other universe, so what’s the big deal?”
  10. “The universe doesn’t look like it was designed for life, but rather for empty space or maybe black holes.”
  11. “Fine-tuning shows there must be an intelligent designer beyond physical reality that tuned the universe so it would produce intelligent life.”

Download CPBD episode 040 with Luke Barnes. Total time is 1:16:31.

There is a very good explanation of some of the cases of fine-tuning that I talk about most on this blog – the force of gravity, the strong force, etc. as well as many other examples. Dr. Barnes is an expert, but he is also very very easy to listen to even when talking about difficult issues. Luke M. is very likeable as the interviewer.