THE LANGUAGE OF OUR CELLS
Does the intelligence of DNA point
to a designer?
Consider for a moment the cathedral-like structure of a snowflake
under a microscope. Look at the beauty. Look at the complexity.
Look at the originality of each individual flake. Surely this
is evidence for a grand designer in the universe.
Well, no, actually it’s not—no more so than the burned
enchilada of a woman in Mexico that apparently revealed the image
of Jesus (though in the photo it did kind of look like him).
Although crystalline forms of a snowflake are beautiful and impressive,
designs of this type abound in nature, and natural processes can
and do produce them.
Neo-Darwinists believe that natural selection and favorable mutations
are the total explanation for the appearance of design in nature.
But what if complexity in nature is discovered that is not explainable
by natural selection and chance mutations? What if, unlike our
snowflake and enchilada examples, scientists discover a form of
complexity that exceeds all human engineering and all sophisticated
software programs? This raises an important question: How would
we be able to detect intelligent design in nature if it actually
exists?
OF CLOTHES DRYERS, MOUNT RUSHMORE, AND
PRIME NUMBERS
The folks at SETI (Search for Extraterrestrial Intelligence) have
done some thinking along the lines of what constitutes signs of
intelligence. They are searching for extraterrestrial life, as
opposed to God, but they have to deal with the same problem set.
How would they recognize communication from outer space if they
saw or heard it?
Some of their thinking is brought out in the movie Contact. In
one scene, the character played by Jodie Foster spends the evening
listening to her dryer (presumably Blockbuster was closed). But
there is a method to her apparent madness. She is trying to train
her ears so that she will be able to recognize intelligent radio
signals from outer space, filtering out the zillion random signals
produced by all manner of objects in the cosmos.
A clothes dryer produces a certain level of mechanical rhythm;
its noise actually has a level of design, sort of like that of
a snowflake. But that noise (especially when you have sneakers
thumping around in there) represents a type of design that non-intelligence
(that is, nature) can produce.
How can we tell the difference between design that occurs naturally
and intelligent design?
Let’s say we’ve headed out to Vegas, and along the
way, we come upon a bizarre rock formation. I say, “Hey,
look at the erosion on that rock. It looks kind of like Richard
Nixon when the Watergate tapes were made public.” You, on
the other hand, think it looks like Vladimir Putin eating scrambled
eggs. We agree to disagree, but we both note that the forces of
erosion made something that looks a bit like a product of intelligent
design.
Now, as we drive farther, we come to Mount Rushmore. Seeing it
for the first time, I am amazed. I say, “Wow, look at the
erosion on those rocks. It looks just like three presidents I
recognize and some guy wearing glasses.” You rightly call
me an idiot, not only because you know who Teddy Roosevelt is,
but also because it is obvious by the way the stone is cut and
the extraordinary degree of design that this is the product of
intelligent craftsmen—ones who apparently have no fear of
heights.
But there must be a more scientific way to differentiate between
these two levels of design: one that can be produced by nature
and one that can’t.
Later on in the movie Contact, the scientists receive
radio waves at the sequence of 1,126 beats and pauses. The sequence,
they deduce, represents the prime numbers 2 through 101. It becomes
doubtful that random radio waves could emit such a sequence, thus
they presume they have made contact.
This is a more scientific way of differentiating between two different
orders of design. It is commonly called CSI. This acronym
has nothing to do with a popular TV show. It stands for “complex,
specified information.”
CSI: THE UNIVERSE
Here is what you need to remember about CSI, or complex, specified
information. Nature can generate information that is complex,
and it can produce information that is specified, but it cannot
do both.
The best way to understand this is to think of yourself as a computer
programmer. (You might want to grab a large bag of potato chips
and a six-pack of Coke to get into character.) I want you to write
a program for the computer telling it to type random letters of
the alphabet.
It should be fairly easy to write the program. Just instruct the
computer to type keys at random and repeat the process infinitely.
Now, occasionally the letters might make an interesting pattern,
perhaps even type the word “Nixon” by accident, but
it is clearly generating a design of complexity without any real
specificity.
Now let’s switch it around. Let’s say I ask you to
program the computer to type the word “the”. This
is going to require specificity. You must specify, “Computer,
type the letter ‘t,’ then ‘h,’ and then
‘e,’ and do this over and over again until your printer
runs out of ink or your hard drive crashes.” This is specific,
but it is not complex. You can program the computer in this case,
like the previous one, with just a few lines of instructions.
Typing random letters or typing a simple word over and over is
like the kind of
design that natural processes can handle on their own.
Now let’s look at specified complexity. Let’s say
I ask you to program the computer to write out a Harlequin romance
novel and make the girl decide to dump the guy in the end. You
would have to write a list of instructions for the computer larger
than the book itself. You would have to specify, in the form of
a command, every letter of every word.
Few people would have thought of Harlequin romances as specified
complexity, but as you can see, they are. The commands to the
computer are extremely complex and extremely specific. That’s
the kind of detail we must demand if we are going to believe that
there is intelligent design exhibited in the world.
PROBABLY INTELLIGENT
Seems simple enough, but at what point does something cross the
threshold from the simple design found in nature to second-order
design produced only by intelligence? Mathematician William Dembski
illustrates the difference by having us visualize a rat trying
to go through a maze.
In a simple maze, the rat can take one turn and escape from the
maze. Even a dim-witted rat could take one turn and escape. But
now imagine that the maze is extremely complex, possessing walls
and requiring 100 precise turns to reach the point of escape.
How likely is it that the little critter will quickly learn all
the correct turns and escape? Impossible–unless we have
one awfully bright rat.
So, when do we infer intelligence? According to mathematicians
when the odds against an event occurring are 1 in 10150
or greater, it can’t be accidential.1 In order to grasp
such an astronomical number, consider that the odds against winning
a Power ball lottery with a single ticket is about 1 in 108.
Or trying to pick a solitary atom from all the atoms in the universe
would be 1 in 1080.
So, having cleared all that up, we come to the real question.
Forgetting all the erosion and snowflake patterns, are there any
examples of specified complexity found in nature pointing toward
intelligent design? The short answer is yes. What follows, without
getting into too much detail, is the longer answer. It uses the example of something each of us
has heard something about: deoxyribonucleic acid, or DNA.
WHAT A LITTLE STAND CAN DO
DNA. That one complex molecule contains the complete blueprint
for every cell in every living thing. In a sense DNA is like a
recipe where common ingredients are used to make different dishes.
Only, instead of tasty dishes, DNA instructs cells to make flowers,
whales, chickens, or people. (Hmm…so chickens aren’t
tasty dishes?)
The genius of DNA lies not only in its complex coded instructions
for life but also in its incredibly well-designed architecture,
which allows it to contain billions of detailed instructions within
a microscopic molecule. The amount of DNA that would fit on a
pinhead contains information equivalent to that of a stack of
paperback books that would encircle the earth 5,000 times!2
Our complete blueprint is present in each of our thousand million
million cells. Think of an enormous building with thousands upon
thousands of rooms, where each room houses a complete set of blueprints
for the entire structure. (If these analogies are getting a little
sterile for you, then you might want to imagine a series of beach
houses—and imagine yourself sitting in one.) However, instead
of merely thousands of rooms, our bodies contain trillions of
cells, each with a complete package of DNA instructions.3
Each strand of DNA in our bodies consists of three billion base
pairs of genetic information. These base pairs form a chain, which
constitutes the entire human genetic code. Today the entire human
genome has been mapped out. Even though humans are closest to
chimpanzees in DNA sequencing, there are still some 40 million
differences. (Except maybe with my friend Bob.)4
YOUR CELLS ARE TALKING
But just what is DNA, and how does it work? Although scientists
are only beginning to unravel its mysteries, they know that DNA
works much like a coded language. Microsoft chairman Bill Gates
(apparently sizing up the potential to patent it and make it a
part of Windows) discloses, “DNA is like a computer program,
but far, far more advanced than any software we’ve ever
created.”5
When we think of sophisticated computer programs, we immediately
realize that their coded software was intentionally designed.
Materialists believe that DNA originated without any such intentional
process. But is it possible that natural causes alone engineered
DNA?
Prior to microbiologists’ discovery of the incredibly complex
language of DNA, materialists had believed its origin was explainable
by natural means. However, design theorists have now applied the
mathematical discipline of CSI to the question of whether DNA
is the result of intelligent design or was accidental in its origin.
Historian and philosopher Stephen C. Meyer comments
on the intelligence required for coded languages: “Our experience
with information-intensive systems (especially codes and languages)
indicates that such systems always come from an intelligent source.”6
In other words, like a code or language, DNA operates with specifically
organized instructions. This is the CSI (complex, specified information)
discussed earlier as the watermark of intelligent design.
When DNA directs the cell to make proteins, it first gives instructions
to make amino acids. Then twenty different amino acids must precisely
link up into a chain, folding into an exacting, irregular three-dimensional
protein. The amino acids are like letters; their arrangement spells
out the specific protein being made.
Proteins are truly amazing. MIT-trained scientist Dr. Gerald Schroeder
explains,
Other than sex and blood cells, every cell in your body is making
approximately two thousand proteins every second. A protein
is a combination of three hundred to over a thousand amino acids.
An adult human body is made of approximately seventy-five trillion
cells. Every second of every minute of every day, your body
and every body is organizing on the order of 150 thousand thousand
thousand thousand thousand thousand amino acids into carefully
constructed chains of proteins. Every second; every minute;
every day. The fabric from which we and all life are built is
being continually rewoven at a most astoundingly rapid rate.7
LIFE IN A TEST TUBE
In the 1950’s, Harold Urey, a professor at the University
of Chicago challenged his students to create life in a test tube.
One of his students who tried, Stanley Miller was jubilant, when
after enormous efforts he produced a few amino acids…the
building blocks of proteins.
It all appeared so promising, but what Miller didn’t understand
then was that without DNA, those amino acids would never be able
to form proteins…the stuff of life. The initial euphoria
faded once further discoveries revealed life’s incredible
complexity.
Professor J.P. Moreland compares laboratory results with the complexity
required to generate life: “…if life can be likened
to an encyclopedia in complexity and information, the best we
have done is to synthesize a compound which carries the complexity
and information of the word ME. The jump from ME to an encyclopedia
is so far and speculative that the relevance of progress so far
is questionable.”8
Meyer points out that the chemical codes directing the process
attach themselves to the structure of the DNA molecule like letters
on a chalkboard, but they do so without becoming organically involved
with the board or the other letters.
Therefore, he distinguishes the information content from the chemical
bonding.
Furthermore, Meyer compares the sequencing of the amino acids
to a language:
“Amino acids alone do not make proteins, any more than letters
alone make words, sentences or poetry.”9
The fact that the arrangement of the letters is not the result
of chemical bonding has driven Meyer to conclude that, without
intelligence, DNA would never be able to turn amino acids into
proteins. He writes, “The chance of each amino acid finding
the correct bond is one in twenty; the chance of one hundred amino
acids hooking up to successfully make a functional protein is
one in 1030.”10
And to survive, the protein chain must be contained within an
intricate cellular architecture. That means that the odds against
a protein being manufactured randomly are astronomical. It would
be easier for a blindfolded person to find one special grain of
sand hidden on one of the world’s beaches than to have a
protein appear by chance.
WHERE DID IT COME FROM?
Such complexity is so improbable that Meyer believes the DNA code
cannot be the product of undirected natural processes. Furthermore,
he reasons that DNA coding exhibits creative intelligence beyond
random chemical bonds.
Perhaps this is why every attempt to create life has failed. Cambridge
Professor of Evolutionary Paleobiology, Simon Conway Morris remarks
on biologists’ efforts to replicate life in a test tube:
“And yet, something is clearly missing: life cannot be created
in the laboratory, nor is there any clear prospect of it happening.”11
How did a molecule with such complex coded instructions originate?
What natural process triggered a smattering of organic chemicals
to come together and form the incredibly sophisticated double
helix? Schroeder remarks, “And here’s that enigma.
… It shows its head in a dozen different ways, the problem
of how the entire process originally got started.”12
Dembski, Meyer, and Schroeder are part of a growing number of
scientists and mathematicians who have concluded that the DNA
molecule is so complex that it couldn’t have spontaneously
assembled itself.
In Probability 1, mathematician and evolutionist Amir Aczel summarizes
the DNA dilemma: “Having surveyed the discovery of the structure
of DNA … and having seen how DNA stores and manipulates
tremendous amounts of information (3 billion separate bits for
a human being) and uses the information to control life, we are
left with one big question: What created DNA?”13
An increasing number of scientists in other fields are also admitting
that DNA’s complexity is not explainable by mere chance.
Theoretical physicist Paul Davies affirms in The 5th Miracle,
The peculiarity of biological complexity makes genes seem almost
like impossible objects. …
I have come to the conclusion that no familiar law of nature
could produce such a structure from incoherent chemicals with
the inevitability that some scientists assert.14
Biologist Michael Behe comments on the dilemma facing scientists
who are wedded to a purely materialistic account of the origin
of life, “In the face of the enormous complexity that modern
biochemistry has uncovered in the cell, the scientific community
is paralyzed.”15
Agnostic Sir Fred Hoyle, when considering the enormous information
requirement of life writes, “Were a refined theory available
for estimating the information content of DNA it would, in our
opinion, be immediately apparent from its overwhelming content
that life could never have arisen on a miniscule planet like on
Earth. It would be seen that, to match the information content
of even the simplest cell, nothing less than the resources of
the entire Universe are needed.”16
DNA BY DESIGN?
Scientists have been stunned by the overwhelming probability against
DNA forming by chance. It is one thing for intelligent scientists
to manipulate chemicals under laboratory conditions, and it is
quite another to attribute the origin of DNA to random action.
Even the most ardent materialists do not claim to have explained
DNA’s origin.
Amir Aczel questions his own materialistic belief by admitting
that DNA is too complex to have arisen from natural processes.
In a reflective mode he asks,
Are we witnessing here something so wondrous, so fantastically
complex, that it could not be chemistry or random interactions
of elements, but something far beyond our understanding?17
DNA’s codiscoverer Francis Crick also considers DNA to be
too complex to have arisen in a warm pond on early Earth. This
highly regarded Nobel Prize–winning biologist concludes,
“An honest man, armed with all the knowledge available to
us now, could only state that in some sense, the origin of life
appears at the moment to almost be a miracle, so many are the
conditions which would have had to have been satisfied to get
it going.”18
In spite of Crick’s assertion that DNA appears miraculous
he remained a materialist and began looking to outer space for
the origin of life. (panspermia).
Having acknowledged the impossibility of DNA to originate naturally,
some scientists have shifted their focus to RNA. Several biologists
believe that DNA emerged from RNA. However, microbiologists who
have analyzed RNA now believe it too “could not have emerged
straight from the prehistoric muck.”19
Not only is RNA prohibitively intricate, but it’s far more
delicate than DNA, meaning it couldn’t cohere by itself
even if it did come together by chance. Thus, the origin of life
remains an unsolved riddle to scientists.
Aczel reasons that the complexity of DNA could not have arisen
naturally on Earth, He asks, “Was it perhaps the power,
thinking, and will of a supreme being that created this self-replicating
basis of all life?”20 Like Crick,
Aczel concludes that DNA must have arrived from outer space.
But according to Dembski, “Natural causes such as chance
and law are incapable of producing CSI.”21
Since these laws apply throughout the universe, one shouldn’t
hold his breath about finding Klingons on Planet Qo’noS
in the Beta Quadrant–unless a designer made DNA based life
elsewhere.
So how did life on Earth originate? Is intelligent design worthy
of consideration? Not according to Dawkins, Eldridge, Mayr, and
a host of other materialistic scientists who are convinced it
is an enemy of science.
Yet other leading scientists are willing to objectively look at
the evidence. And new scientific evidence has pushed intelligent
design to the forefront of the debate on origins. Even many hardened
atheists have considered the evidence and admit the implications
of design.
Antony Flew is one materialist who led the charge against an intelligent
designer. Recognized by many as the world’s leading atheist
for the past fifty years, Flew wrote over thirty books arguing
against a creator.
But this formidable atheist took an honest look at DNA, remarking,
What I think the DNA material has done is show that intelligence
must have been involved in getting these extraordinarily diverse
elements together. The enormous complexity by which the results
were achieved look to me like the work of intelligence.22
Flew, who accepts Darwinian evolution, but doubts it can account
for life’s origins, sees intelligent design as the best
option to explain biological complexity. He made front page news
when he renounced his atheism, remarking,
I think the argument to Intelligent Design is enormously stronger
than it was when I first met it…It now seems to me that
the finding of more than fifty years of DNA research have provided
materials for a new and enormously powerful argument to design.23
Flew’s honesty is to be applauded, but materialists aren’t
clapping. As the intelligent design movement gains momentum, many
refuse to consider it as an option, dismissing it as “unscientific.”
However, most thinking people want to hear the facts and draw
their own conclusions. Like Flew, many who have honestly investigated
the evidence, are in awe at what appears to be a superintelligence
behind life and all its intricate complexity.
ENDNOTES
1 William A. Dembski, The Design Revolution
(Downers Grove, IL: InterVarsity Press, 2004), 85.
2 Werner Gitt, “Dazzling Designs in
Miniature,” Creation Ex Nihilo, December 1997–February
1998, 6.
3 Richard Dawkins, The Selfish Gene
(Oxford: Oxford University Press, 1989), 1.
4 Nicholas Wade, “In Chimpanzee DNA,
Signs of Y Chromosome’s Evolution,” New York Times,
Sept. 1, 2005, A13.
5 William A. Dembski and James M. Kushiner,
eds., Signs of Intelligence (Grand Rapids, MI: Brazos,
2001), 108.
6 Ibid., 115.
7 Gerald Schroeder, The Hidden Face
of God (New York: Touchstone, 2001), 189.
8 Ibid.
9 J.P. Moreland, Scaling the Secular
City (Grand rapids: Baker Books, 2000), 221.
10 Larry Witham, By Design (San
Francisco: Encounter, 2003), 147.
11 Simon Conway Morris, Life’s
Solution (Cambridge: Cambridge University Press, 2003), 46.
12 Schroeder, 192–193.
13 Amir D. Aczel, Probability 1
(New York: Harvest, 1998), 88.
14 Paul Davies, The 5th Miracle
(New York: Simon & Schuster, 2000), 20.
15 Michael J. Behe, Darwin’s Black
Box (New York: Touchstone, 1996), 185.
16 Sir Fred Hoyle, “The Information
Content of Life,” The Universe Unfolding (Oxford:
Clarendon Press, eds. Sir Hermann Bondi & Miranda Weston-Smith,
1998), 8.
17 Aczel, 88.
18 Francis Crick, Life Itself (New
York: Simon & Schuster, 1981), 88.
19 Nell Boyce, “Triumph of the Helix,”
U. S. News & World Report, February 24/March 3, 2003,
41.
20 Aczel, 88.
21 William A. Dembski, Intelligent Design:
the Bridge between Science and Theology (Downers Grove, IL:
InterVarsity), 1999.
22 Antony Flew, quoted in video, “Has
Science Discovered God?” Roy Abraham Varghese’s Institute
for Metascientific Research in Garland, Texas, December, 2004.
23 Quoted in Gary Habermas, “My Pilgrimage
from Atheism to Theism”: Interview with Antony Flew, Philosophia
Christi, (Winter, 2005).
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