Life’s irreducible structure—Part 1: autopoiesis
by Alex Williams
The commonly cited case for intelligent design appeals to: (a) the irreducible complexity
of (b) some aspects of life. But complex arguments invite complex refutations
(valid or otherwise), and the claim that only some aspects of life are
irreducibly complex implies that others are not, and so the average person remains
unconvinced. Here I use another principle—autopoiesis (self-making)—to
show that all aspects of life lie beyond the reach of naturalistic explanations.
Autopoiesis provides a compelling case for intelligent design in three stages: (i)
autopoiesis is universal in all living things, which makes it a pre-requisite
for life, not an end product of natural selection; (ii) the inversely-causal, information-driven,
structured hierarchy of autopoiesis is not reducible to the laws of physics and
chemistry; and (iii) there is an unbridgeable abyss between the dirty, mass-action
chemistry of the natural environmental and the perfectly-pure, single-molecule precision
of biochemistry. Naturalistic objections to these propositions are considered in
Part II of this article.
Snowflake photos by Kenneth G. Libbrecht.
Figure 1. Reducible structure. Snowflakes (left) occur in hexagonal shapes because
water crystallizes into ice in a hexagonal pattern (right). Snowflake structure
can therefore be reduced to (explained in terms of) ice crystal structure. Crystal
formation is spontaneous in a cooling environment. The energetic vapour molecules
are locked into solid bonds with the release of heat to the environment, thus increasing
overall entropy in accord with the second law of thermodynamics.
The commonly cited case for intelligent design (ID) goes as follows: ‘some
biological systems are so complex that they can only function when all of their
components are present, so that the system could not have evolved from a simpler
assemblage that did not contain the full machinery.’1 This definition is what biochemist Michael Behe
called irreducible complexity in his popular book Darwin’s Black
Box2 where he pointed
to examples such as the blood-clotting cascade and the proton-driven molecular motor
in the bacterial flagellum. However, because Behe appealed to complexity,
many equally complex rebuttals have been put forward,3 and because he claimed that only some of
the aspects of life were irreducibly complex, he thereby implied that the majority
of living structure was open to naturalistic explanation. As a result of these two
factors, the concept of intelligent design remains controversial and unproven in
popular understanding.
In this article, I shall argue that all aspects of life point to intelligent
design, based on what European polymath Professor Michael Polanyi FRS, in his 1968
article in Science called ‘Life’s Irreducible Structure.’4 Polanyi argued that living
organisms have a machine-like structure that cannot be explained by (or reduced
to) the physics and chemistry of the molecules of which they consist. This concept
is simpler, and broader in its application, than Behe’s concept of irreducible
complexity, and it applies to all of life, not just to some of it.
The nature and origin of biological design
Biologists universally admire the wonder of the beautiful ‘designs’
evident in living organisms, and they often recoil in revulsion at the horrible
‘designs’ exhibited by parasites and predators in ensuring the survival
of themselves and their species. But to a Darwinist, these are only ‘apparent
designs’—the end result of millions of years of tinkering by
mutation and fine tuning by natural selection. They do not point to a cosmic Designer,
only to a long and ‘blind’ process of survival of the fittest.5 For a Darwinist, the same
must also apply to the origin of life—it must be an emergent property
of matter. An emergent property of a system is some special arrangement that is
not usually observed, but may arise through natural causes under the right environmental
conditions. For example, the vortex of a tornado is an emergent property of atmospheric
movements and temperature gradients. Accordingly, evolutionists seek endlessly for
those special environmental conditions that may have launched the first round of
carbon-based macromolecules6
on their long journey towards life. Should they ever find those unique environmental
conditions, they would then be able to explain life in terms of physics and chemistry.
That is, life could then be reduced to the known laws of physics, chemistry
and environmental conditions.
However, Polanyi argued that the form and function of the various parts of living
organisms cannot be reduced to (or explained in terms of) the laws of physics
and chemistry, and so life exhibits irreducible structure. He did not speculate
on the origin of life, arguing only that scientists should be willing to recognize
the impossible when they see it:
‘The recognition of certain basic impossibilities has laid the foundations
of some major principles of physics and chemistry; similarly, recognition of the
impossibility of understanding living things in terms of physics and chemistry,
far from setting limits to our understanding of life, will guide it in the right
direction.’7
Reducible and irreducible structures
To understand Polanyi’s concept of irreducible structure, we must first look
at reducible structure. The snowflakes in figure 1 illustrate reducible
structure.
Meteorologists have recognized about eighty different basic snowflake shapes, and
subtle variations on these themes add to the mix to produce a virtually infinite
variety of actual shapes. Yet they all arise from just one kind of molecule—water.
How is this possible?
Figure 2. Irreducible structure. The silver coins (left) have properties
of flatness, roundness and impressions on faces and rims, that cannot be explained
in terms of the crystalline state of silver (close packed cubes) or its natural
occurrence as native silver (right).
When water freezes, its crystals take the form of a hexagonal prism. Crystals then
grow by joining prism to prism. The elaborate branching patterns of snowflakes arise
from the statistical fact that a molecule of water vapour in the air is most likely
to join up to its nearest surface. Any protruding bump will thus tend to grow more
quickly than the surrounding crystal area because it will be the nearest surface
to the most vapour molecules.8
There are six ‘bumps’ (corners) on a hexagonal prism, so growth will
occur most rapidly from these, producing the observed six-armed pattern.
Snowflakes have a reducible structure because you can produce them with
a little bit of vapour or with a lot. They can be large or small. Any one water
molecule is as good as any other water molecule in forming them. Nothing goes wrong
if you add or subtract one or more water molecules from them. You can build them
up one step at a time, using any and every available water molecule. The patterns
can thus all be explained by (reduced to) the physics and chemistry of water and
the atmospheric conditions.
Figure 3. Common irreducibly structured machine components: lever (A), cogwheel
(B) and coiled spring (C). All are made of metal, but their detailed structure and
function cannot be reduced to (explained by) the properties of the metal they are
made of.
To now understand irreducible structure, consider a silver coin.
Silver is found naturally in copper, lead, zinc, nickel and gold ores—and
rarely, in an almost pure form called ‘native silver’. Figure 2 shows
the back and front of two vintage silver coins, together with a nugget of the rare
native form of silver. The crystal structure of solid silver consists of closely
packed cubes. The main body of the native silver nugget has the familiar lustre
of the pure metal, and it has taken on a shape that reflects the available space
when it was precipitated from groundwater solution. The black encrustations are
very fine crystals of silver that continued to grow when the rate of deposition
diminished after the main load of silver had been deposited out of solution.
Unlike the case of the beautifully structured snowflakes, there is no natural process
here that could turn the closely packed cubes of solid silver into round, flat discs
with images of men, animals and writing on them. Adding more or less silver cannot
produce the roundness, flatness and image-bearing properties of the coins, and looking
for special environmental conditions would be futile because we recognize that the
patterns are man-made. The coin structure is therefore irreducible to the
physics and chemistry of silver, and was clearly imposed upon the silver by some
intelligent external agent (in this case, humans).
Whatever the explanation, however, the irreducibility of the coin structure to the
properties of its component silver constitutes what I shall call a ‘Polanyi
impossibility’. That is, Polanyi identified this kind of irreducibility
as a naturalistic impossibility, and argued that it should be recognized as such
by the scientific community, so I am simply attaching his name to the principle.
There are endless examples of such irreducible structures in living systems, but
they all work under a unifying principle called ‘autopoiesis’.
Polanyi pointed to the machine-like structures that exist in living organisms. Figure
3 gives three examples of common machine components: a lever, a cogwheel and a coiled
spring. Just as the structure and function of these common machine components cannot
be explained in terms of the metal they are made of, so the structure and function
of the parallel components in life cannot be reduced to the properties of the carbon,
hydrogen, oxygen, nitrogen, phosphorus, sulphur and trace elements that they are
made of. There are endless examples of such irreducible structures in living systems,
but they all work under a unifying principle called ‘autopoiesis’.
Autopoiesis defined
Autopoiesis literally means ‘self-making’ (from the Greek auto
for self, and the verb poiéō meaning ‘I make’
or ‘I do’) and it refers to the unique ability of a living organism
to continually repair and maintain itself—ultimately to the point of reproducing
itself—using energy and raw materials from its environment. In contrast, an
allopoietic system (from the Greek allo for other) such as a car
factory, uses energy and raw materials to produce an organized structure (a car)
which is something other than itself (a factory).9
Autopoiesis is a unique and amazing property of life—there is nothing else
like it in the known universe. It is made up of a hierarchy of irreducibly structured
levels. These include: (i) components with perfectly pure composition, (ii) components
with highly specific structure, (iii) components that are functionally integrated,
(iv) comprehensively regulated information-driven processes, and (v) inversely-causal
meta-informational strategies for individual and species survival (these terms will
be explained shortly). Each level is built upon, but cannot be explained in terms
of, the level below it. And between the base level (perfectly pure composition)
and the natural environment, there is an unbridgeable abyss. The enormously complex
details are still beyond our current knowledge and understanding, but I will illustrate
the main points using an analogy with a vacuum cleaner.
A vacuum cleaner analogy
My mother was excited when my father bought our first electric vacuum cleaner in
1953. It consisted of a motor and housing, exhaust fan, dust bag, and a flexible
hose with various end pieces. Our current machine uses a cyclone filter and follows
me around on two wheels rather than on sliders as did my mother’s original
one. My next version might be the small robotic machine that runs around the room
all by itself until its battery runs out. If I could afford it, perhaps I might
buy the more expensive version that automatically senses battery run-down and returns
to its induction housing for battery recharge.
Notice the hierarchy of control systems here. The original machine required an operator
and some physical effort to pull the machine in the required direction. The transition
to two wheels allows the machine to trail behind the operator with little effort,
and the cyclone filter eliminates the messy dust bag. The next transition to on-board
robotic control requires no effort at all by the operator, except to initiate the
action to begin with and to take the machine back to the power source for recharge
when it has run down. And the next transition to automatic sensing of power run-down
and return-to-base control mechanism requires no effort at all by the operator once
the initial program is set up to tell the machine when to do its work.
If we now continue this analogy to reach the living condition of autopoiesis, the
next step would be to install an on-board power generation system that could use
various organic, chemical or light sources from the environment as raw material.
Next, install a sensory and information processing system that could determine the
state of both the external and internal environments (the dirtiness of the floor
and the condition of the vacuum cleaner) and make decisions about where to expend
effort and how to avoid hazards, but within the operating range of the available
resources. Then, finally, the pièce de résistance, to install
a meta-information (information about information) facility with the ability to
automatically maintain and repair the life system, including the almost miraculous
ability to reproduce itself—autopoiesis.
Notice that each level of structure within the autopoietic hierarchy depends upon
the level below it, but it cannot be explained in terms of that lower level.
Notice that each level of structure within the autopoietic hierarchy depends upon
the level below it, but it cannot be explained in terms of that lower level. For
example, the transition from out-sourced to on-board power generation depends upon
there being an electric motor to run. An electric vacuum cleaner could sit in the
cupboard forever without being able to rid itself of its dependence upon an outside
source of power—it must be imposed from the level above, for it cannot come
from the level below. Likewise, autopoiesis is useless if there is no vacuum cleaner
to repair, maintain and reproduce. A vacuum cleaner without autopoietic capability
could sit in the cupboard forever without ever attaining to the autopoietic stage—it
must be imposed from the level above, as it cannot come from the level below.
The autopoietic hierarchy is therefore structured in such a way that any kind of
naturalistic transition from one level to a higher level would constitute a Polanyi
impossibility. That is, the structure at level i is dependent upon the
structure at level i-1 but cannot be explained by the structure at that
level. So the structure at level i must have been imposed from level i
or above.
The naturalistic abyss
Most origin-of-life researchers agree (at least in the more revealing parts of their
writings)10 that there
is no naturalistic experimental evidence directly demonstrating a pathway from non-life
to life. They continue their research, however, believing that it is just a matter
of time before we discover that pathway. But by using the vacuum cleaner analogy,
we can give a solid demonstration that the problem is a Polanyi impossibility right
at the foundation—life is separated from non-life by an unbridgeable abyss.
Dirty, mass-action environmental chemistry
The ‘simple’ structure of the early vacuum cleaner is not simple at
all. It is made of high-purity materials (aluminium, plastic, fabric, copper wire,
steel plates etc) that are specifically structured for the job in hand and functionally
integrated to achieve the designed task of sucking up dirt from the floor. Surprisingly,
the dirt that it sucks up contains largely the same materials that the vacuum cleaner
itself is made of—aluminium, iron and copper in the mineral grains of dirt,
fabric fibres in the dust, and organic compounds in the varied debris of everyday
home life. However, it is the difference in form and function of these otherwise
similar materials that distinguishes the vacuum cleaner from the dirt on the floor.
In the same way, it is the amazing form and function of life in a cell that separates
it from the non-life in its environment.
Naturalistic chemistry is invariably ‘dirty chemistry’ while life uses
only ‘perfectly-pure chemistry’. I have chosen the word ‘dirty
chemistry’ not in order to denigrate origin-of-life research, but because
it is the term used by Nobel Prize winner Professor Christian de Duve, a leading
atheist researcher in this field.11
Raw materials in the environment, such as air, water and soil, are invariably mixtures
of many different chemicals. In ‘dirty chemistry’ experiments, contaminants
are always present and cause annoying side reactions that spoil the hoped-for outcomes.
As a result, researchers often tend to fudge the outcome by using artificially purified
reagents. But even when given pure reagents to start with, naturalistic experiments
typically produce what a recent evolutionist reviewer variously called ‘muck’,
‘goo’ and ‘gunk’12—which
is actually toxic sludge. Even our best industrial chemical processes can only produce
reagent purities in the order of 99.99%. To produce 100% purity in the laboratory
requires very highly specialized equipment that can sort out single molecules from
one another.
Another crucial difference between environmental chemistry and life is that chemical
reactions in a test tube follow the Law of Mass Action.13 Large numbers of molecules are involved, and the
rate of a reaction, together with its final outcome, can be predicted by assuming
that each molecule behaves independently and each of the reactants has the same
probability of interacting. In contrast, cells metabolize their reactants with single-molecule
precision, and they control the rate and outcome of reactions, using enzymes and
nano-scale-structured pathways, so that the result of a biochemical reaction can
be totally different to that predicted by the Law of Mass Action.
The autopoietic hierarchy
Perfectly-pure, single-molecule-specific bio-chemistry
The vacuum cleaner analogy breaks down before we get anywhere near life because
the chemical composition of its components is nowhere near pure enough for life.
The materials suitable for use in a vacuum cleaner can tolerate several percent
of impurities and still produce adequate performance, but nothing less than 100%
purity will work in the molecular machinery of the cell.
One of the most famous examples is homochirality. Many carbon-based molecules have
a property called ‘chirality’—they can exist in two forms that
are mirror images of each other (like our left and right hands) called ‘enantiomers’.
Living organisms generally use only one of these enantiomers (e.g. left-handed amino
acids and right-handed sugars). In contrast, naturalistic experiments that produce
amino acids and sugars always produce an approximately 50:50 mixture (called a ‘racemic’
mixture) of the left-and right-handed forms. The horrors of the thalidomide drug
disaster resulted from this problem of chirality. The homochiral form of one kind
had therapeutic benefits for pregnant women, but the other form caused shocking
fetal abnormalities.
The property of life that allows it to create such perfectly pure chemical components
is its ability to manipulate single molecules one at a time. The assembly of proteins
in ribosomes illustrates this single-molecule precision. The recipe for the protein
structure is coded onto the DNA molecule. This is transcribed onto a messenger-RNA
molecule which then takes it to a ribosome where a procession of transfer-RNA molecules
each bring a single molecule of the next required amino acid for the ribosome to
add on to the growing chain. The protein is built up one molecule at a time, and
so the composition can be monitored and corrected if even a single error is made.
Specially structured molecules
Life contains such a vast new world of molecular amazement that no one has yet plumbed
the depths of it. We cannot hope to cover even a fraction of its wonders in a short
article, so I will choose just one example. Proteins consist of long chains of amino
acids linked together. There are 20 amino acids coded for in DNA, and proteins commonly
contain hundreds or even thousands of amino acids. Cyclin B is an averaged-size
protein, with 433 amino acids. It belongs to the ‘hedgehog’ group of
signalling pathways which are essential for development in all metazoans. Now there
are 20433 (20 multiplied by itself 433 times) = 10563 (10
multiplied by itself 563 times) possible proteins that could be made from an arbitrary
arrangement of 20 different kinds of amino acids in a chain of 433 units. The human
body—the most complex known organism—contains somewhere between 105
(= 100,000) and 106 (=1,000,000) different proteins. So the probability
(p) that an average-sized biologically useful protein could arise by a
chance combination of 20 different amino acids is about p = 106
/10563 = 1/10557 . And this assumes that only L-amino acids
are being used—i.e. perfect enantiomer purity.14
For comparison, the chance of winning the lottery is about 1/106 per
trial, and the chance of finding a needle in a haystack is about 1/1011
per trial. Even the whole universe only contains about 1080 atoms, so
there are not even enough atoms to ensure the chance assembly of even a single average-sized
biologically useful molecule. Out of all possible proteins, those we see in life
are very highly specialized—they can do things that are naturally not possible.
For example, some enzymes can do in one second what natural processes would take
a billion years to do.15
Just like the needle in the haystack. Out of all the infinite possible arrangements
of iron alloy (steel) particles, only those with a long narrow shape, pointed at
one end and with an eye-loop at the other end, will function as a needle. This structure
does not arise from the properties of steel, but is imposed from outside.
Water, water, everywhere
There is an amazing paradox at the heart of biology. Water is essential to life,16 but also toxic—it
splits up polymers by a process called hydrolysis, and that is why we use it to
wash with. Hydrolysis is a constant hazard to origin-of-life experiments, but it
is never a problem in cells, even though cells are mostly water (typically 60–90%).
In fact, special enzymes called hydrolases are required in order to get hydrolysis
to occur at all in a cell.17
Why the difference? Water in a test tube is free and active, but water in cells
is highly structured, via a process called ‘hydrogen bonding’, and this
water-structure is comprehensively integrated with both the structure and function
of all the cell’s macromolecules:
‘The hydrogen-bonding properties of water are crucial to [its] versatility,
as they allow water to execute an intricate three-dimensional “ballet”,
exchanging partners while retaining complex order and enduring effects. Water can
generate small active clusters and macroscopic assemblies, which can both transmit
and receive information on different scales.’18
Water should actually be first on the list of molecules that need to be specially
configured for life to function. Both the vast variety of specially structured macromolecules
and their complementary hydrogen-bonded water structures are required at
the same time. No origin-of-life experiment has ever addressed this problem.
Functionally integrated molecular machines
Figure 4. ATP synthase, a proton-powered molecular motor. Protons (+) from inside
the cell (below) move through the stator mechanism embedded in the cell membrane
and turn the rotor (top part) which adds inorganic phosphate (iP) to ADP to convert
it to the high-energy state ATP.
It is not enough to have specifically structured, ultra-pure molecules, they must
also be integrated together into useful machinery. A can of stewed fruit is full
of chemically pure and biologically useful molecules but it will never produce a
living organism19 because
the molecules have been disorganized in the cooking process. Cells contain an enormous
array of useful molecular machinery. The average machine in a yeast cell contains
5 component proteins,20
and the most complex—the spliceosome, that orchestrates the reading of separated
sections of genes—consists of about 300 proteins and several nucleic acids.21
One of the more spectacular machines is the tiny proton-powered motor that produces
the universal energy molecule ATP (adenosine tri-phosphate) illustrated in Figure
4. When the motor spins one way, it takes energy from digested food and converts
it into the high-energy ATP, and when the motor spins the other way, it breaks down
the ATP in such a way that its energy is available for use by other metabolic processes.22
Comprehensively regulated, information-driven metabolic functions
It is still not enough to have spectacular molecular machinery—the various
machines must be linked up into metabolic pathways and cycles that work towards
an overall purpose. What purpose? This question is potentially far deeper than science
can take us, but science certainly can ascertain that the immediate practical purpose
of the amazing array of life structures is the survival of the individual and perpetuation
of its species.23 Although
we are still unravelling the way cells work, a good idea of the multiplicity of
metabolic pathways and cycles can be found in the BioCyc collection. The majority
of organisms so far examined, from microbes to humans, have between 1,000 and 10,000
different metabolic pathways.24
Nothing ever happens on its own in a cell—something else always causes it,
links with it or benefits or is affected by it. And all of these links are multi-step
processes.
All of these links are also ‘choreographed’ by information—a phenomenon
that never occurs in the natural environment. At the bottom of the information
hierarchy is the storage molecule—DNA. The double-helix of DNA is ‘just
right’ for genetic information storage, and this ‘just right’
structure is beautifully matched by the elegance and efficiency of the code in which
the cell’s information is written there.25
But it is not enough even to have an elegant ‘just right’ information
storage system—it must also contain information. And not just biologically
relevant information, but brilliantly inventive strategies and tactics to guide
living things through the extraordinary challenges they face in their seemingly
miraculous achievements of metabolism and reproduction. Yet even ingenious strategies
and tactics are not enough. Choreography requires an intricate and harmonious regulation
of every aspect of life to make sure that the right things happen at the right time,
and in the right sequence, otherwise chaos and death soon follow.
Recent discoveries show that biochemical molecules are constantly moving, and much
of their amazing achievements are the result of choreographing all this constant
and complex movement to accomplish things that static molecules could never achieve.
Yet there is no spacious ‘dance floor’ on which to choreograph the intense
and lightning-fast (up to a million events per second for a single reaction26) activity of metabolism.
A cell is more like a crowded dressing room than a dance floor, and in a show with
a cast of millions!
Inversely causal meta-information
The Law of Cause and Effect is one of the most fundamental in all of science. Every
scientific experiment is based upon the assumption that the end result of the experiment
will be caused by something that happens during the experiment. If the experimenter
is clever enough, then he/she might be able to identify that cause and describe
how it produced that particular result or effect.
Causality always happens in a very specific order—the cause always comes before
the effect.27 That is,
event A must always precede event B if A is to be considered
as a possible cause of B. If we happened to observe that A occurred
after B, then this would rule out A as a possible cause of B.
In living systems however, we see the universal occurrence of inverse causality.
That is, an event A is the cause of event B, but A exists
or occurs after B. It is easier to understand the biological situation
if we refer to examples from human affairs. In economics, for example, it occurs
when behaviour now, such as an investment decision, is influenced by some future
event, such as an anticipated profit or loss. In psychology, a condition that exists
now, such as anxiety or paranoia, may be caused by some anticipated future event,
such as harm to one’s person. In the field of occupational health and safety,
workplace and environmental hazards can exert direct toxic effects upon workers
(normal causality), but the anticipation or fear of potential future harm can also
have an independently toxic effect (inverse causality).
Darwinian philosopher of science Michael Ruse recently noted that inverse causality
is a universal feature of life,28
and his example was that stegosaur plates begin forming in the embryo but only have
a function in the adult—supposedly for temperature control. However most biologists
avoid admitting such things because it suggests that life might have purpose (a
future goal), and this is strictly forbidden to materialists.
The most important example of inverse causality in living organisms is, of course,
autopoiesis. We still do not fully understand it, but we do understand the most
important aspects. Fundamentally, it is meta-information—it is information
about information. It is the information that you need to have in order
to keep the information you want to have to stay alive, and to ensure the
survival of your descendants and the perpetuation of your species.
This last statement is the crux of this whole paper, so to illustrate its validity
lets go back to the vacuum cleaner analogy. Let’s imagine that one lineage
of vacuum cleaners managed to reach the robotic, energy-independent stage, but lacked
autopoiesis, while a second makes it all the way to autopoiesis. What is the difference
between these vacuum cleaners? Both will function very well for a time. But as the
Second Law of Thermodynamics begins to take its toll, components will begin to wear
out, vibrations will loosen connections, dust will gather and short circuit the
electronics, blockages in the suction passage will reduce cleaning efficiency, wheel
axles will go rusty and make movement difficult, and so on. The former will eventually
die and leave no descendants. The latter will repair itself, keep its components
running smoothly and reproduce itself to ensure the perpetuation of its species.
In summary, autopoiesis is the information—and associated abilities—that
you need to have (repair, maintenance and differential reproduction) in order to
keep the information that you want to have (e.g. vacuum cleaner functionality) alive
and in good condition to ensure both your survival and that of your descendants.
But what happens if the environment changes and endangers the often-delicate metabolic
cycles that real organisms depend upon? Differential reproduction is the solution.
Evolutionists from Darwin to Dawkins have taken this amazing ability for granted,
but it cannot be overlooked. There are elaborate systems in place—for example,
the diploid to haploid transition in meiosis, the often extraordinary embellishments
and rituals of sexual encounters, the huge number of permutations and combinations
provided for in recombination mechanisms—to provide offspring with variations
from their parents that might prove of survival value. To complement these potentially
dangerous deviations from the tried-and-true there are also firm conservation measures
in place to protect the essential processes of life (e.g. the ability to read the
DNA code and to translate it into metabolic action). None of this should ever be
taken for granted.
In summary, autopoiesis is the information—and associated abilities—that
you need to have (repair, maintenance and differential reproduction) in
order to keep the information that you want to have (e.g. vacuum cleaner
functionality) alive and in good condition to ensure both your survival and that
of your descendants. In a parallel way, my humanity is what I personally value,
so my autopoietic capability is the repair, maintenance and differential reproductive
capacity that I have to maintain my humanity and to share it with my descendants.
The egg and sperm that produced me knew nothing of this, but the information was
encoded there and only reached fruition six decades later as I sit here writing
this—the inverse causality of autopoiesis.
Summary
There are three lines of reasoning pointing to the conclusion that autopoiesis provides
a compelling case for the intelligent design of life.
• If life began in some stepwise manner from a non-autopoietic beginning, then
autopoiesis will be the end product of some long and blind process of accidents
and natural selection. Such a result would mean that autopoiesis is not essential
to life, so some organisms should exist that never attained it, and some organisms
should have lost it by natural selection because they do not need it. However, autopoiesis
is universal in all forms of life, so it must be essential. The argument
from the Second Law of Thermodynamics as applied to the vacuum cleaner analogy also
points to the same conclusion. Both arguments demonstrate that autopoiesis is required
at the beginning for life to even exist and perpetuate itself, and could
not have turned up at the end of some long naturalistic process. This conclusion
is consistent with the experimental finding that origin-of-life projects which begin
without autopoiesis as a pre-requisite have proved universally futile in achieving
even the first step towards life.
• Each level of the autopoietic hierarchy is dependent upon the one below it,
but is causally separated from it by a Polanyi impossibility. Autopoiesis therefore
cannot be reduced to any sequence of naturalistic causes.
• There is an unbridgeable abyss below the autopoietic hierarchy, between the
dirty, mass-action chemistry of the natural environment and the perfect purity,
the single-molecule precision, the structural specificity, and the inversely causal
integration, regulation, repair, maintenance and differential reproduction of life.
Related articles
Further reading
Related resources
References
- Mark J. Pallen and Nicholas J. Matzke, From The Origin
of Species to the origin of bacterial flagella, Nature Reviews Microbiology
4(10):1493, 2006; <home.planet.nl/~gkorthof/pdf/Pallen_Matzke.pdf>,
19 Mar. 2007. Return to text.
- Behe, M., Darwin’s Black Box: The biochemical challenge
to evolution, Free Press, New York, 1996. Return to text.
- See Pallen and Matzke, ref. 1, also web articles and links
at: <www.talkorigins.org/faqs/behe.html>, 19 Mar. 2007, and <www.discovery.org/scripts/viewDB/index.php?command=view&id=3405>,
19 Mar. 2007. Return to text.
- Polanyi, M., Life’s irreducible structure, Science
160:1308–1312, 1968. Return to text.
- Dawkins, R., The Blind Watchmaker: Why the evidence of
evolution reveals a universe without design, Norton, New York, 1996.
Return to text.
- The molecules of the non-living world are usually fairly short,
most consisting of fewer than 10 different atoms. In stark contrast, living organisms
crucially depend upon long chains of hundreds, thousands and tens of thousands of
atoms, called macromolecules. The reason for their extraordinary length is so that
they can be shaped into biologically useful tools, structures and molecular machines.
The carbon atom is uniquely suited to making long chain molecules because it has
unusually versatile bonding capabilities. Return to text.
- Polanyi, ref. 4, p. 1312. Return to text.
- Information and illustrations adapted from <www.snowcrystals.com/>,
19 Mar. 2007. Return to text.
- Autopoiesis, <en.wikipedia.org/wiki/Autopoiesis>, 19
Mar. 2007. Return to text.
- Nobel Prize winning origin of life researcher Christian de
Duve admitted in the foreword to his latest book that he had not been entirely clear
on this point in his earlier books on the subject and wished to correct this oversight.
See, de Duve, C., Singularities: Landmarks on the Pathways of Life, Cambridge
University Press, UK, 2005. Return to text.
- de Duve, C., Singularities: Landmarks on the pathways
of life, Cambridge University Press, UK, 2005. Return to text.
- Conway Morris, S., Life’s Solution: Inevitable
humans in a lonely universe, Cambridge University Press, UK, Chs 3–4,
2003. Return to text.
- Mass action, <en.wikipedia.org/wiki/Mass_action>, 19
Mar. 2007. Return to text.
- Many proteins will tolerate some variations in their amino
acid sequence, but only substitutions by certain other L-amino acids. Cytochrome
c can tolerate 1035 such variations (Yockey, H., Information Theory,
Evolution and the Origin of Life, Cambridge University Press, UK, 2005,
Ch.6), but this makes no significant difference to the outcome of probability calculations.
In contrast, ubiquitin, a protein found in all forms of life except bacteria, will
tolerate no variation at all at most of its amino acid positions (Truman, R., The
ubiquitin protein: chance or design? Journal of Creation 19(3):116–127,
2005; <www.creation.com/article/4346/>
19 Mar. 2007). Return to text.
- Enzyme, <en.wikipedia.org/wiki/Enzymes>, 19 Mar. 2007.
Return to text.
- Some organisms have life stages that can dry out and survive,
but they still need a majority composition of water to grow and reproduce.
Return to text.
- Some metabolic processes are confusingly called ‘hydrolysis
reactions’ but they are not the hydrolysis referred to here. ‘ATP hydrolysis,’
for example, is a highly structured way of transferring chemical energy through
a metabolic coupling without the loss to the environment that free hydrolysis would
cause. Return to text.
- Chaplin, M., Do we underestimate the importance of water
in cell biology? Nature Reviews Molecular Cell Biology 7:861–866,
2006. Return to text.
- If a can of food did happen to pop its lid because of biological
activity inside, an examination would find it to have been caused, not by a newly
evolved form of life, but by a common and well-known contaminant organism that was
not eliminated by the sterilization process. Return to text.
- Krogan, N.J. et al., Global landscape of
protein complexes in the yeast Saccharomyces cerevisiae, Nature 440:637–643,
2006. Return to text.
- Nilsen, T.W., The spliceosome: the most complex
macromolecular machine in the cell? Bioessays 25(12):1147–1149,
2003. Return to text.
- Images and information are available at: <en.wikipedia.org/wiki/ATP_synthase>,
19 March 2007, and animation movies are available at: <nature.berkeley.edu/~hongwang/Project/ATP_synthase/>,
19 Mar. 2007. Return to text.
- The usual definition of autopoiesis does not include survival
of the species, but it is built-in to living organisms and should be included in
the definition. Return to text.
- Karp, P.D., Ouzounis, C.A., Moore-Kochlacs, C., Goldovsky,
L., Kaipa, P., Ahrén, D., Tsoka, S., Darzentas, N., Kunin, V. and López-Bigas,
N., Expansion of the BioCyc collection of pathway/genome databases to 160 genomes,
Nucleic Acids Research 33(19):6083–6089, 2005; <nar.oxfordjournals.org/cgi/content/full/33/19/6083>,
19 Mar. 2007. Return to text.
- Conway Morris, S., ref. 12, pp. 27–31.
Return to text.
- The enzyme carbonic anhydrase can exchange carbon dioxide
in blood at this rate. <en.wikipedia.org/wiki/Carbonic_anhydrase>, 19 Mar.
2007. Return to text.
- In physics there are some apparent exceptions in extreme
conditions under which life cannot survive. In very powerful gravitational fields
and at velocities near the speed of light, the time sequence of events and their
apparent (but not actual) chain of causality may be violated. Apparent violations
can also occur at the quantum level, but only with quantum particles, not with objects
as large as molecules or living cells. Return to text.
- Ruse, M., Darwin and Design: Does Evolution have a Purpose?
Harvard University Press, MA, 2003. See
review: Journal of Creation 18(3):31–34,
2004; <http://www.creation.com/article/1564>, 19 Mar. 2007. Return to text.
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