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William Dembski discusses irreducible complexity and co-option

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William Dembski explains what the debate on origins is really about.

About the speaker:

Dr. Dembski has taught at Northwestern University, the University of Notre Dame, and the University of Dallas. He has done postdoctoral work in mathematics at MIT, in physics at the University of Chicago, and in computer science at Princeton University. A graduate of the University of Illinois at Chicago where he earned a B.A. in psychology, an M.S. in statistics, and a Ph.D. in philosophy, he also received a doctorate in mathematics from the University of Chicago in 1988 and a master of divinity degree from Princeton Theological Seminary in 1996. He has held National Science Foundation graduate and postdoctoral fellowships.

The lecture:

Part 1:

Part 2:

Part 3:

Summary (snark is in italics)

What is evolution:

  • Is it enough for Christian students to just retain their faith in college?
  • Or should Christian students seek to transform their universities?
  • The word “evolution” refers to a unguided, purposeless, undirected process
  • Living organisms are not designed, they just appear to be designed
  • Therefore, it is an atheistic theory – there is NO ROOM for God
  • Random variations and natural selection can do the creating of life without God
  • Nothing about evolution suggest that God had anything to do with it

The appearance of design:

  • The cell is a nano-engineered information processing system.
  • The cell has engineering, e.g. – signal transduction, message passing, etc.
  • There are molecular machines similar to man-made machines, but less efficient
  • E.g. – the bacterial flagellum which has 40 parts
  • These molecular machines have minimal complexity – all the parts are needed
  • can’t build a molecular machine step-by-step – all the parts must be present and integrated

How does evolution try to explain molecular machines:

  • The standard naturalistic response is “co-option”
  • Each intermediate step has pieces that are used for other purposes
  • I.e. – Subsets of the parts can have different functions
  • For example, a subset of the bacterial flagellum can be used as a syringe
  • The subset, called the Type-3 secretory system, has only 13 parts
  • The problem is that evolutionists don’t show all the steps, and all the functions
  • For this to be a good response, you need a smooth path from 1 part up to 40
  • Each step of the path has to have a working system with a different function
  • But the atheists don’t have the path, or the intermediate functions
  • It’s like arguing that you can walk from Seattle to Tokyo via the Hawaiian islands

Is the bacterial flagellum a cherry-picked example?

  • There are no detailed molecular pathways for any biochemical systems in the cell
  • The atheistic response is to speculate that pathways will be found as science progresses
  • The pathways are unobservable entities, just like the multiverse and the Cambrian precursors

Where does the machinery to create proteins come from?

  • The molecular machines are composed of proteins
  • The proteins are manufactured by copying protein-building instructions from the DNA
  • The instructions are carried to the build site by messenger RNA
  • The build site is called a ribosome
  • The DNA requires proteins to build, so there is a chicken-and-egg problem
  • The problem is that protein transcription systems require everything in place
  • There is no materialistic theory about how to build this step-by-step

So what do the molecular machines tell us about how life began?

  • The problem of the origin of life is the problem of the origin of information
  • What needs to be explained are the functional sequences of parts
  • The sequences are identical to sequences of letters that make sense
  • The atheist has to say that material processes can create the information
  • The problem of finding sequences of amino acids or proteins is a search problem
  • A blind search of the space of possible sequences is not efficient
  • even with lots time, parts and trials, you can’t converge on functional proteins
  • information is required and the only known producer of information is a mind

Bill is one of my favorite people. He’s smarter than practically all of the atheists who dominate the universities. But because he is an outspoken Christian, he never gets the recognition he deserves. He just keeps plugging away on his research. He doesn’t make excuses.

What is intelligent design?

Related DVDs

Illustra also made two other great DVDs on intelligent design. The first two DVDs “Unlocking the Mystery of Life” and “The Privileged Planet” are must-buys, but you can watch them on youtube if you want, for free.

Here are the 2 playlists:

I also recommend Coldwater Media’s “Icons of Evolution”. All three of these are on sale from Amazon.com.

Related posts

Polemics

Has the progress of science vindicated Mike Behe or Ken Miller?

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ECM send me a couple of articles recently from Uncommon Descent and Evolution News that I wanted to write about.

The topic is Junk DNA, which is the name given by naturalists to the portions of the DNA code that do not code for proteins. Is Junk DNA really just leftover junk from a blind, purposeless process of fully naturalistic evolution? Or does it have a function, like intelligent design theorists say? Let’s put these predictions to the test and then update our worldviews to fit with the scientific evidence.

The prediction of Ken Miller

Anti-theistic biologist Ken Miller said in 1994 that DNA is filled with junk left over from naturalistic, random evolution:

…the designer made serious errors, wasting millions of bases of DNA on a blueprint full of junk and scribbles.

Ken Miller

One thing you have to like about Ken is that he manages to fit in some predictions along with his factually incorrect statements under oath.

The prediction of Michael Behe

Theistic biologist Michael Behe said in 2002 that DNA isn’t as junky some people think, because of the evidence:

As a public skeptic of the ability of Darwinian processes to account for complex cellular systems and a proponent of the hypothesis of intelligent design, (1) I often encounter a rebuttal that can be paraphrased as “no designer would have done it that way.” …
If at least some pseudogenes have unsuspected functions, however, might not other biological features that strike us as odd also have functions we have not yet discovered? Might even the backwards wiring of the vertebrate eye serve some useful purpose?
….
Hirotsune et al’s (3) work has forcefully shown that our intuitions about what is functionless in biology are not to be trusted.

Sincerely, Michael J. Behe
An Open Letter to Nature

Those are the two predictions.

So, what does the progress of science say to confirm one prediction or the other? Well, let’s see what Nature, the most prestigious peer-reviewed science journal, has to say.

In 1961, French biologists François Jacob and Jacques Monod proposed the idea that ‘regulator’ proteins bind to DNA to control the expression of genes. Five years later, American biochemist Walter Gilbert confirmed this model by discovering the lac repressor protein, which binds to DNA to control lactose metabolism in Escherichia colibacteria1. For the rest of the twentieth century, scientists expanded on the details of the model, but they were confident that they understood the basics. “The crux of regulation,” says the 1997 genetics textbook Genes VI (Oxford Univ. Press), “is that a regulator gene codes for a regulator protein that controls transcription by binding to particular site(s) on DNA.”

Just one decade of post-genome biology has exploded that view. Biology’s new glimpse at a universe of non-coding DNA — what used to be called ‘junk’ DNA — has been fascinating and befuddling. Researchers from an international collaborative project called the Encyclopedia of DNA Elements (ENCODE) showed that in a selected portion of the genome containing just a few per cent of protein-coding sequence, between 74% and 93% of DNA was transcribed into RNA2. Much non-coding DNA has a regulatory role; small RNAs of different varieties seem to control gene expression at the level of both DNA and RNA transcripts in ways that are still only beginning to become clear. “Just the sheer existence of these exotic regulators suggests that our understanding about the most basic things — such as how a cell turns on and off — is incredibly naive,” says Joshua Plotkin, a mathematical biologist at the University of Pennsylvania in Philadelphia.

On the Evolution News post, pro-ID guy Rob Crowther writes:

…not that long ago, junk DNA was being defended as an important element of the Darwinian evolution paradigm… The question now seems to be whether Ayala, Dawkins, Collins, Falk and other junk DNA proponents will continue to defend junk DNA, whatever they call it?

The post by Rob Crowther has more information on this story.

If you are one of those people who thinks that naturalistic molecules-to-man evolution is as proved as is the fact that the Earth goes around the Sun, then check out the links below – ESPECIALLY the debates. Peter Atkins, Michael Shermer and Lewis Wolpert are some of the most prominent prominent proponents of naturalism and materialism out there. Watch the debates. Have an open mind. If science can be hijacked by global warmists, then it can be hijacked by evolutionists, too. We need to guard against that.

I know there is a lot of pressure on people to just believe in naturalism, especially when their degree or career depends on a public profession of faith in the power of chance and material processes. But we have to follow the evidence – science is about evidence, not ideology. Science is about testing to see what is true, not forcing the evidence to confirm what you want to believe (e.g. – materialism). There is a difference between the religious assumption of naturalism/materialism and the scientific method of predicting and testing.

Related posts

Learn more about intelligent design

Videos

Watch two great intelligent design documentaries online for free!

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Here’s the first one, all about biological information in DNA and the origin of life.

Part 1 of 12:

The full playlist is here.

Here’s the second one, all about what it takes to have a habitable planet.

Part 1 of 12:

The full playlist here.

These are each about an hour long. The third one in the series is called “Darwin’s Dilemma”, and it covers the origin of new body plans and organ types in the Cambrian explosion. It’s the best of the series.

(H/T Apologetics 315)