Tag Archives: Nature

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, 41 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 propositional.

  • 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 vote Democrat and allow government to redistribute wealth to the poor

  • Stop thinking about creation and start thinking about social justice! But not for stinky unborn babies

Q&A time

The lecture concludes with 13 minutes of questions.

News

Study finds that gay parents are more likely to raise gay kids

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A new peer-reviewed study about gay parents raising gay kids in AOL News.

Excerpt:

Walter Schumm knows what he’s about to do is unpopular: publish a study arguing that gay parents are more likely to raise gay children than straight parents. But the Kansas State University family studies professor has a detailed analysis that past almost aggressively ideological researchers never had.

[…]His study on sexual orientation, out next month, says that gay and lesbian parents are far more likely to have children who become gay. “I’m trying to prove that it’s not 100 percent genetic,” Schumm tells AOL News.

His study is a meta-analysis of existing work. First, Schumm extrapolated data from 10 books on gay parenting… [and] skewed his data so that only self-identified gay and lesbian children would be labeled as such.

This is important because sometimes Schumm would come across a passage of children of gay parents who said they were “adamant about not declaring their sexual orientation at all.” These people would be labeled straight, even though the passage’s implication was that they were gay.

Schumm concluded that children of lesbian parents identified themselves as gay 31 percent of the time; children of gay men had gay children 19 percent of the time, and children of a lesbian mother and gay father had at least one gay child 25 percent of the time.

Furthermore, when the study restricted the results so that they included only children in their 20s — presumably after they’d been able to work out any adolescent confusion or experimentation — 58 percent of the children of lesbians called themselves gay, and 33 percent of the children of gay men called themselves gay. (About 5 to 10 percent of the children of straight parents call themselves gay, Schumm says.)

Schumm next went macro, poring over an anthropological study of various cultures’ acceptance of homosexuality. He found that when communities welcome gays and lesbians, “89 percent feature higher rates of homosexual behavior.”

Finally, Schumm looked at the existing academic studies… In all there are 26 such studies. Schumm ran the numbers from them and concluded that, surprisingly, 20 percent of the kids of gay parents were gay themselves. When children only 17 or older were included in the analysis, 28 percent were gay.

Here’s the paper entitled “Children of homosexuals more apt to be homosexuals?“. It appeared in the Journal of Biosocial Science.

Abstract:

Ten narrative studies involving family histories of 262 children of gay fathers and lesbian mothers were evaluated statistically in response to Morrison’s (2007) concerns about Cameron’s (2006) research that had involved three narrative studies. Despite numerous attempts to bias the results in favour of the null hypothesis and allowing for up to 20 (of 63, 32%) coding errors, Cameron’s (2006) hypothesis that gay and lesbian parents would be more likely to have gay, lesbian, bisexual or unsure (of sexual orientation) sons and daughters was confirmed. Percentages of children of gay and lesbian parents who adopted non-heterosexual identities ranged between 16% and 57%, with odds ratios of 1.7 to 12.1, depending on the mix of child and parent genders. Daughters of lesbian mothers were most likely (33% to 57%; odds ratios from 4.5 to 12.1) to report non-heterosexual identities. Data from ethnographic sources and from previous studies on gay and lesbian parenting were re-examined and found to support the hypothesis that social and parental influences may influence the expression of non-heterosexual identities and/or behaviour. Thus, evidence is presented from three different sources, contrary to most previous scientific opinion, even most previous scientific consensus, that suggests intergenerational transfer of sexual orientation can occur at statistically significant and substantial rates, especially for female parents or female children. In some analyses for sons, intergenerational transfer was not significant. Further research is needed with respect to pathways by which intergenerational transfer of sexual orientation may occur. The results confirm an evolving tendency among scholars to cite the possibility of some degree of intergenerational crossover of sexual orientation.

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News

New study finds that advantageous traits don’t easily infuse in populations

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A new study in Nature (September 30,2010) has found something interesting. (H/T WgButler777)

Excerpt:

Our work provides a new perspective on the genetic basis of adaptation. Despite decades of sustained selection in relatively small, sexually reproducing laboratory populations, selection did not lead to the fixation of newly arising unconditionally advantageous alleles. This is notable because in wild populations we expect the strength of natural selection to be less intense and the environment unlikely to remain constant for ~600 generations.”

Consequently, the probability of fixation in wild populations should be even lower than its likelihood in these experiments. This suggests that selection does not readily expunge genetic variation in sexual populations, a finding which in turn should motivate efforts to discover why this is seemingly the case.”

What does it mean?

It means that good traits that evolve in a single individual do not necessarily “take” in the entire population, so that will live on in successive generations. If the accumulation of beneficial mutations is required for Darwinism to create all of these new body plans and organ types, then what are we to make of the creative power of Darwinian mechanisms?

Read more about it here at Uncommon Descent.