BREAKING THE GALILEAN SPELL

Stuart A. Kauffman [4.11.08]
Topic:

Even deeper than emergence and its challenge to reductionism in this new scienti?c worldview is what I call breaking the Galilean spell. Galileo rolled balls down incline planes and showed that the distance traveled varied as the square of the time elapsed. From this he obtained a universal law of motion. Newton followed with his Principia, setting the stage for all of modern science. With these triumphs, the Western world came to the view that all that happens in the universe is governed by natural law. Indeed, this is the heart of reductionism. Another Nobel laureate physicist, Murray Gell-Mann, has de?ned a natural law as a compressed description, available beforehand, of the regularities of a phenomenon. The Galilean spell that has driven so much science is the faith that all aspects of the natural world can be described by such laws. Perhaps my most radical scienti?c claim is that we can and must break the Galilean spell. Evolution of the biosphere, human economic life, and human history are partially indescribable by natural law. This claim ?ies in the face of our settled convictions since Galileo, Newton, and the Enlightenment.

STUART A. KAUFFMAN is a professor at the University of Calgary with a shared appointment between biological sciences and physics and astronomy. He is also the leader of the Institute for Biocomplexity and Informatics (IBI) which conducts leading-edge interdisciplinary research in systems biology.

Dr. Kauffman is also an emeritus professor of biochemistry at the University of Pennsylvania, a MacArthur Fellow and an external professor at the Santa Fe Institute. He is the author of The Origins of Order, At Home in the Universe: The Search for the Laws of Self-Organization, Investigations and Reinventing the Sacred: A New View of Science, Reason, and Religion (Basic Books, forthcoming, May 5th).

Stuart A. Kauffman's Edge Bio Page


BREAKING THE GALILEAN SPELL

My aim is to reinvent the sacred. I present a new view of a fully natural God and of the sacred, based on a new, emerging scientifc worldview. This new worldview reaches further than science itself and invites a new view of God, the sacred, and ourselves—ultimately including our science, art, ethics, politics, and spirituality. My field of research, complexity theory, is leading toward the reintegration of science with the ancient Greek ideal of the good life, well lived. It is not some tortured interpretation of fundamentally lifeless facts that prompts me to say this; the science itself compels it.

This is not the outlook science has presented up to now. Our current scientific worldview, derived from Galileo, Newton, and their followers, is the foundation of modern secular society, itself the child of the Enlightenment. At base, our contemporary perspective is reductionist: all phenomena are ultimately to be explained in terms of the interactions of fundamental particles. Perhaps the simplest statement of reductionism is due to Simon Pierre Laplace early in the nineteenth century, who said that a sufficient intelligence, if given the positions and velocities of all the particles in the universe, could compute the universe’s entire future and past. As Nobel laureate physicist Stephen Weinberg famously says, “All the explanatory arrows point downward, from societies to people, to organs, to cells, to biochemistry, to chemistry, and ultimately to physics.” Weinberg also says, “The more we know of the universe, the more meaningless it appears.”

Reductionism has led to very powerful science. One has only to think of Einstein’s general relativity and the current standard model in quantum physics, the twin pillars of twentieth century physics. Molecular biology is a product of reductionism, as is the Human Genome Project.

But Laplace’s particles in motion allow only happenings. There are no meanings, no values, no doings. The reductionist worldview led the existentialists in the mid-twentieth century to try to and value in an absurd, meaningless universe, in our human choices. But to the reductionist, the existentialists’ arguments are as void as the spacetime in which their particles move. Our human choices, made by ourselves as human agents, are still, when the full science shall have been done, mere happenings, ultimately to be explained by physics.

Reductionism is inadequate reductionism. Even major physicists now doubt its full legitimacy. Biology and its evolution cannot be reduced to physics alone but stand in their own right. Life, and with it agency, came naturally to exist in the universe. With agency came values, meaning, and doing, all of which are as real in the universe as particles in motion. “Real” here has a particular meaning: while life, agency, value, and doing presumably have physical explanations in any specific organism, the evolutionary emergence of these cannot be derived from or reduced to physics alone. Thus, life, agency, value, and doing are real in the universe. This stance is called emergence. Weinberg notwithstanding, there are explanatory arrows in the universe that do not point downward. A couple in love walking along the banks of the Seine are, in real fact, a couple in love walking along the banks of the Seine, not mere particles in motion. More, all this came to exist without our need to call upon a Creator God.

Emergence is therefore a major part of the new scientific worldview. Emergence says that, while no laws of physics are violated, life in the biosphere, the evolution of the biosphere, the fullness of our human historicity, and our practical everyday worlds are also real, are not reducible to physics nor explicable from it, and are central to our lives. Emergence, already both contentious and transformative, is but one part of the new scienti?c worldview I embrace.

Even deeper than emergence and its challenge to reductionism in this new scientific worldview is what I call breaking the Galilean spell. Galileo rolled balls down incline planes and showed that the distance traveled varied as the square of the time elapsed. From this he obtained a universal law of motion. Newton followed with his Principia, setting the stage for all of modern science. With these triumphs, the Western world came to the view that all that happens in the universe is governed by natural law. Indeed, this is the heart of reductionism. Another Nobel laureate physicist, Murray Gell-Mann, has defined a natural law as a compressed description, available beforehand, of the regularities of a phenomenon. The Galilean spell that has driven so much science is the faith that all aspects of the natural world can be described by such laws. Perhaps my most radical scienti?c claim is that we can and must break the Galilean spell. Evolution of the biosphere, human economic life, and human history are partially indescribable by natural law. This claim ?ies in the face of our settled convictions since Galileo, Newton, and the Enlightenment.

If no natural law sufices to describe the evolution of the biosphere, of technological evolution, of human history, what replaces it? In its place is a wondrous radical creativity without a supernatural Creator. Look out your window at the life teeming about you. All that has been going on is that the sun has been shining on the earth for some 5 billion years. Life is about 3.8 billion years old. The vast tangled bank of life, as Darwin phrased it, arose all on its own. This web of life, the most complex system we know of in the universe, breaks no law of physics, yet is partially lawless, ceaselessly creative. So, too, are human history and human lives. This creativity is stunning, awesome, and worthy of reverence. One view of God is that God is our chosen name for the ceaseless creativity in the natural universe, biosphere, and human cultures.

Because of this ceaseless creativity, we typically do not and cannot know what will happen. We live our lives forward, as Kierkegaard said. We live as if we knew, as Nietzsche said. We live our lives forward into mystery, and do so with faith and courage, for that is the mandate of life itself. But the fact that we must live our lives forward into a ceaseless creativity that we cannot fully understand means that reason alone is an insufficient guide to living our lives. Reason, the center of the Enlightenment, is but one of the evolved, fully human means we use to live our lives. Reason itself has finally led us to see the inadequacy of reason. We must therefore reunite our full humanity. We must see ourselves whole, living in a creative world we can never fully know. The Enlightenment’s reliance on reason is too narrow a view of how we flourish or flounder. It is important to the Western Hebraic-Hellenic tradition that the ancient Greeks relied preeminently on reason to seek, with Plato, the True, the Good, and the Beautiful. The ancient Jews, living with their God, relied more broadly on their full humanity.

The ancient Jews and Greeks split the ancient Western world. The Jews, as Paul Johnson wrote in his History of the Jews, were the best historians of the ancient world, stubbornly commemorating the situated history of a people and their universal, single God, our Abrahamic God. With this part of our Western Hebraic-Hellenic tradition comes our Western sense of history and progress, alive in the creativity of human history. In contrast, Greek thought was universalist and sought natural laws. The Greeks were the ?rst scientists in the West.

If both natural law and ceaseless creativity partially beyond natural law are necessary for understanding our world, and if we as whole human beings live in this real world of law and unknowable creativity, these two ancient strands of Western civilization can reunite in ways we cannot foresee. Out of this union can arise a healing of the long split between science and the humanities, and the schism between pure reason and practical life, both subjects of interest to Immanuel Kant. Science is not, as Galileo claimed, the only pathway to truth. History, the situated richness of the humanities, and the law are true as well. This potential union invites a fuller understanding of ourselves creating our histories and our sacred, as we create our lives.

Across our globe, about half of us believe in a Creator God. Some billions of us believe in an Abrahamic supernatural God, and some in the ancient Hindu gods. Wisdom traditions such as Buddhism often have no gods. About a billion of us are secular but bereft of our spirituality and reduced to being materialist consumers in a secular society. If we the secular hold to anything it is to “humanism.” But humanism, in a narrow sense, is too thin to nourish us as human agents in the vast universe we partially cocreate. I believe we need a domain for our lives as wide as reality. If half of us believe in a supernatural God, science will not disprove that belief.

We need a place for our spirituality, and a Creator God is one such place. I hold that it is we who have invented God, to serve as our most powerful symbol. It is our choice how wisely to use our own symbol to orient our lives and our civilizations. I believe we can reinvent the sacred. We can invent a global ethic, in a shared space, safe to all of us, with one view of God as the natural creativity in the universe.

~~~

 

 

Batter my heart, three-person’d God; for you
As yet but knock, breathe, shine, and seek to mend;
That I may rise, and stand, o’erthrow me and bend
Your force, to break, blow, burn and make me new.
I, like an usurpt town, to another due,
Labour to admit you, but Oh, to no end,
Reason your viceroy in me, me should defend,
But is captiv’d, and proves weak or untrue.
Yet dearly I love you, and would be loved fain,
But am betroth’d unto your enemy:
Divorce me, untie, or break that knot again,
Take me to you, imprison me, for I
Except you enthrall me, never shall be free,
Nor ever chaste, except you ravish me.

John Donne’s exquisite “Holy Sonnet XIV: Batter My Heart,” written in about 1615, when he was a High Anglican churchman, speaks to one of the most poignant schisms in Western society, and more broadly in the world: that between faith and reason. Donne wrote in the time of Kepler. Within a hundred years Newton had given us his three laws of motion and universal gravitation, uniting rest and motion, earth and the heavens: the foundations of modern science. With Descartes, Galileo, Newton, and Laplace, reductionism began and continued its 350-year reign. Over the ensuing centuries, science and the Enlightenment have given birth to secular society. Reductionistic physics has emerged for many as the gold standard for learning about the world. In turn, the growth of science has driven a wedge between faith and reason. It was not so much Galileo’s geocentric theory (derived from Copernicus) that underlay his clash with the church but his claim that only science, not revelation, is the path to knowledge.

Today the schism between faith and reason finds voice in the sometimes vehement disagreements between Christian or Islamic fundamentalists, who believe in a transcendent Creator God, and agnostic and atheist “secular humanists” who do not believe in a transcendent God. These divergent beliefs are profoundly held. Our senses of the sacred have been with us for thousands of years, at least from the presumptive earth goddess of Europe ten thousand years ago, through the Egyptian, Greek, Abrahamic, Aztec, Mayan, Incan, and Hindu gods, Buddhism, Taoism, and other traditions. Neanderthals buried their dead. Perhaps they also worshiped gods. Recently an aboriginal tribe was unwilling to allow its DNA to be sampled as part of a worldwide study on the origins and evolution of humanity for fear that science would challenge its view of its own sacred origins. Ways of life hang in the balance. I hope to address this schism in a new way.

In the place of the reductionism that has dominated Western science at least since Galileo and Newton but leaves us in a meaningless world of facts devoid of values, I propose a worldview beyond reductionism, in which we are members of a universe of ceaseless creativity in which life, agency, meaning, value, consciousness, and the full richness of human action have emerged. But even beyond this emergence, there are grounds to radically alter our understanding of what science itself appears able to tell us.

Science cannot foretell the evolution of the biosphere, of human technologies, or of human culture or history. A central implication of this new worldview is that we are co-creators of a universe, biosphere, and culture of endlessly novel creativity.

The reductionism derived from Galileo and his successors ultimately views reality as particles (or strings) in motion in space. Contemporary physics has two broad theories. The first is Einstein’s general relativity, which concerns spacetime and matter and how the two interact such that matter curves space, and curved space “tells” matter how to move. The second is the standard model of particle physics, based on fundamental subatomic particles such as quarks, which are bound to one another by gluons and which make up the complex subatomic particles that then comprise such familiar particles as protons and neutrons, atoms, molecules, and so on. Reductionism in its strongest form holds that all the rest of reality, from organisms to a couple in love on the banks of the Seine, is ultimately nothing but particles or strings in motion. It also holds that, in the end, when the science is done, the explanations for higher-order entities are to be found in lower-order entities. Societies are to be explained by laws about people, they in turn by laws about organs, then about cells, then about biochemistry, chemistry, and finally physics and particle physics.

This worldview has dominated our thinking since Newton’s time. Reductionism alone is not adequate, either as a way of doing science or as a way of understanding reality. It turns out that biological evolution by Darwin’s heritable variation and natural selection cannot be “reduced” to physics alone. It is emergent in two senses. The first is epistemological, meaning that we cannot from physics deduce upwards to the evolution of the biosphere. The second is ontological, concerning what entities are real in the universe. For the reductionist, only particles in motion are ontologically real entities. Everything else is to be explained by different complexities of particles in motion, hence are not real in their own ontological right. But organisms, whose evolution of organization of structures and processes, such as the human heart, cannot be deduced from physics, have causal powers of their own, and therefore are emergent real entities in the universe. So, too, are the biosphere, the human economy, human culture, human action.

We often turn to a Creator God to explain the existence of life. But rapid progress is being made in current work on the natural origin of life. Self-reproducing molecules have already been demonstrated in experiments. A Creator God is not needed for the origin of life. More, you and I are agents; we act on our own behalf; we do things. In physics, there are only happenings, no doings. Agency has emerged in evolution and cannot be deduced by physics. With agency come meaning and value. We are beyond reductionist nihilism with respect to values in a world of fact. Values exist for organisms, certainly for human organisms and higher animals, and perhaps far lower on the evolutionary scale. So the new scientific view of emergence brings with it a place for meaning, doing, and value.

Further, the biosphere is a co-constructing emergent whole that evolves persistently. Organisms and the abiotic world create niches for new organisms, in an ongoing open textured exploration of possible organisms. There is a physical basis of this “open texture” in the non-ergodic universe.

At a still higher level, the human economy cannot be reduced to physics. The way the diversity of the economy has grown from perhaps a hundred to a thousand goods and services fifty thousand years ago to tens of billions of goods and services today, in what I call an expanding economic web, depends on the very structure of that web, how it creates new economic niches for ever new goods and services that drive economic growth. This growth in turn drives the further expansion of the web itself by the persistent invention of still newer goods and services. Like the biosphere, the global economy is a self-consistently co-constructing, ever evolving, emergent whole. All these phenomena are beyond physics and not reducible to it.

Then there is the brute fact that we humans (at least) are conscious. We have experiences. We do not understand consciousness yet. There is no doubt that it is real in humans and presumably among many animals. No one knows the basis of it. I have a scientifically improbable, but possible, and philosophically interesting hypothesis about consciousness that is, ultimately, testable. Whatever its source, consciousness is emergent and a real feature of the universe.

All of the above speaks to an emergence not reducible to physics. Thus our common intuition that the origin of life, agency, meaning, value, doing, economic activity, and consciousness are beyond reduction to physics can be given scientific meaning. We live in a different universe from that envisioned by reductionism. The new scientific worldview embraces the reality of emergence.

The evolution of the universe, biosphere, the human economy, human culture, and human action is profoundly creative. It takes some detailed exploration of what are called Darwinian preadaptations to explain this clearly. The upshot is that we do not know beforehand what adaptations may arise in the evolution of the biosphere. Nor do we know beforehand many of the economic evolutions that will arise. No one foresaw the Internet in 1920. This unpredictability may exist on many levels that we can investigate. For example, we do not know beforehand what will arise even in the evolution of cosmic grains of dust that grow by aggregation and chemical reactions to form planetesimals. The wondrous diversity of life out your window evolved in ways that largely could not be foretold. So, too, has the human economy in the past fifty thousand years, as well as human culture and law. They are not only emergent but radically unpredictable. We cannot even prestate the possibilities that may arise, let alone predict the probabilities of their occurrence.

This incapacity to foresee has profound implications. In the physicist Murray Gell-Mann’s definition, a “natural law” is a compact description beforehand of the regularities of a process. But if we cannot even prestate the possibilities, then no compact descriptions of these processes beforehand can exist. These phenomena, then, appear to be partially beyond natural law itself. This means something astonishing and powerfully liberating. We live in a universe, biosphere, and human culture that are not only emergent but radically creative. We live in a world whose unfoldings we often cannot prevision, prestate, or predict—a world of explosive creativity on all sides. This is a central part of the new scientific worldview.

Let me pause to explain just how radical this view is. My claim is not simply that we lack suf?cient knowledge or wisdom to predict the future evolution of the biosphere, economy, or human culture. It is that these things are inherently beyond prediction. Not even the most powerful computer imaginable can make a compact description in advance of the regularities of these processes. There is no such description beforehand. Thus the very concept of a natural law is inadequate for much of reality. If this radical new view is correct, it challenges what I call the Galilean spell, the belief that all in the universe unfolds under natural law.

There is a further profound implication: If the biosphere and the global economy are examples of self-consistently co-constructing wholes, and at the same time, parts of these processes are not sufficiently described by natural law, we confront something amazing. Without suf?cient law, without central direction, the biosphere literally constructs itself and evolves, using sunlight and other sources of free energy, and remains a coherent whole even as it diversifies, and even as extinction events occur. The same is true of the global economy. Such a self-organized, but partially lawless, set of coupled processes stands unrecognized, and thus unseen, right before our eyes. We appear to need a new conceptual framework to see and say this, then to understand and orient ourselves in our ever creative world. We will ?nd ourselves far beyond reductionism, indeed.

Is it, then, more amazing to think that an Abrahamic transcendent, omnipotent, omniscient God created everything around us, all that we participate in, in six days, or that it all arose with no transcendent Creator God, all on its own? I believe the latter is so stunning, so overwhelming, so worthy of awe, gratitude, and respect, that it is God enough for many of us. God, a fully natural God, is the very creativity in the universe. It is this view that I hope can be shared across all our religious traditions, embracing those like myself, who do not believe in a Creator God, as well as those who do. This view of God can be a shared religious and spiritual space for us all.

This view is not as great a departure from Abrahamic thought as we might suppose. Some Jesuit cosmologists look out into the vast universe and reason that God cannot know, from multiple possibilities, where life will arise. This Abrahamic God is neither omniscient nor omnipotent, although outside of space and time. Such a God is a Generator God who does not know or control what thereafter occurs in the universe. Such a view is not utterly different from one in which God is our honored name for the creativity in the natural universe itself.

The Four Injuries

It would be a sufficient task to unravel the implications of this new scienti?fi worldview for our unity with nature and life. But the project before us appears to be even larger. T. S. Eliot once wrote that with Donne and the other metaphysical poets of the Elizabethan age, for the ?rst time in the Western mind, a split arose between reason and our other human sensibilities. The anguish between faith and reason in Donne’s “Holy Sonnet XIV” is but one of these emerging schisms. With the growth of science and the Enlightenment, the Western mind placed its faith in reason and subordinated the rest of our humanity, Eliot’s “other sensibilities,” the fullness of human life.

Almost without our noticing, our secular modern society suffers at least four injuries, which split our humanity down the center. These injuries are larger than the secular-versus-religious split in modern society. What the metaphysical poets began to split asunder—reason and the remaining human sensibilities—we must now attempt to reintegrate. This is also part of reinventing the sacred.

The first injury is the artificial division between science and the humanities. C. P. Snow wrote a famous essay in 1959, “The Two Cultures,” in which he noted that the humanities were commonly revered as “high culture” while the sciences were considered second-class knowledge. Now their roles are reversed: on many university campuses, those who study the humanities are often made to feel like second-class citizens. Einstein or Shakespeare, we seem to believe, but not both in the same room. This split is a fracture down the middle of our integrated humanity.

I believe it is important that this view is wrong. Science itself is more limited by the un-prestatable, unpredictable creativity in the universe than we have realized, and, in any case, science is not the only path to knowledge and understanding. Science cannot explain the intricate, context-dependent, creative, situated aspects of much of human action and invention, or the historicity that embraces and partially defines us. These, however, are just the domains of the humanities, from art and literature to history and law. Truth abides here, too.

A second injury derives from the reductionistic scientific worldview. Reductionism teaches us that, at its base, the real world we live in is a world of fact without values. Wolfgang Kohler, one of the founders of Gestalt psychology, wrote a mid-twentieth-century book hopefully entitled The Place of Value in a World of Fact, in which he struggled unsuccessfully with this issue. His efforts had no effect on reductionism and its claims. The French existentialist philosophers struggled with the same issue, the view that the real universe is devoid of values. Our lives are full of value and meaning, yet no single framework offers a secure place for these facets of our humanity to coexist with fundamental science. We need a worldview in which brute facts yield values, a way to derive ought from is, just the step that Scottish Enlightenment philosopher David Hume warned against. Agency, values, and “doing” did not come into being separately from the rest of existence; they are emergent in the evolution of the biosphere. We are the products of that evolution, and our values are real features of the universe.

A third injury is that agnostic and atheist “secular humanists” have been quietly taught that spirituality is foolish or, at best, questionable. Some secular humanists are spiritual but most are not. We are thus cut off from a deep aspect of our humanity. Humans have led intricate and meaningful spiritual lives for thousands of years, and many secular humanists are bereft of it. Reinventing the sacred as our response to the emergent creativity in the universe can open secular humanists to the legitimacy of their own spirituality.

The fourth injury is that all of us, whether we are secular or of faith, lack a global ethic. In part this is a result of the split, fostered by reductionism, between the world of fact and the world of values. We lack a shared worldwide framework of values that spans our traditions and our responsibilities to all of life, one another, and the planet. Secular humanists believe in fairness and the love of family and friends, and we place our faith in democracy. Our diverse religions have their diverse beliefs. But in the industrialized world all of us are largely reduced to consumers. It is telling that the Nobel laureate economist Kenneth Arrow, when asked to help evaluate the “value” of the U.S. national parks, was stymied because he could not compute the utility of these parks for U.S. consumers. Even in our lives in nature we are reduced to consumers, and our few remaining wild places, to commodities. But the value of these parks is life itself and our participation in it.

This materialism profoundly dismays many thoughtful believers in both the Islamic world and the West. The industrialized world is seen to be, and is, largely consumer oriented, materialistic, and commodi?ed. How strange this world would seem to medieval Europe. How alien it seems to fundamentalist Muslims. We of the industrialized world forget that our current value system is only one of a range of choices. We desperately need a global ethic that is richer than our mere concern about ourselves as consumers. We need something like a new vision of Eden, not one that humanity has forever left but one we can move toward, knowing full well our propensities for both good and evil. We need a global ethic to undergird the global civilization that is emerging as our traditions evolve together.

Part of reinventing the sacred is to heal these injuries—injuries that we hardly know we suffer. If we are members of a universe in which emergence and ceaseless creativity abound, if we take that creativity as a sense of God we can share, the resulting sense of the sacredness of all of life and the planet can help orient our lives beyond the consumerism and commodification the industrialized world now lives, heal the split between reason and faith, heal the split between science and the humanities, heal the want of spirituality, heal the wound derived from the false reductionist belief that we live in a world of fact without values, and help us jointly build a global ethic. These are what is at stake in finding a new scienti?c worldview that enables us to reinvent the sacred.

 

[Copyright © 2008 by Stuart Kauffman. Excerpted from the Preface and First Chapter of Reinventing the Sacred: A New View of Science, Reason, and Religion. Reprinted by permission of the publisher.]