Posted by
Rob on Saturday, March 14, 2009 8:27:03 PM
Last Sunday evening, I went to a talk on Science and Religion at the Schwenkfelder church nearby. You may recall that I had taught a
college course on the subject, so it's special interest of mine. There were lots of astronomy slides, and after the talk someone asked the inevitable question on the existence of extra-terrestrial life. It was all I could do to keep from jumping up and lecturing on Mars and
comets. But afterwards, it puzzled me why this particular question always arises. Is there something about the Bible that forbids extra-terrestrial life? Or is there something about Darwin that forbids it? What is the motivation?
It could be that in 1600
Giordano Bruno was burned at the stake in Rome for holding heretical views including the view that there were an infinity of worlds with intelligent life. Or it could be that Darwinism claims Evolution is so inexorable that if life should ever form on another planet, why it had to evolve into Richard Dawkins by now, and if we had another planet full of Dawkins clones, then did Jesus also save them from their sins, or is the Bible just a parochial book in a universe of Bibles? That is, are the universal and unique claims of Christianity undermined by the existence of extraterrestrial life?
I've blogged on
this before, arguing that fine protestant theologians like CS Lewis, found nothing unchristian about life on other planets. A colleague of mine asked Alexei, the patriarch of Moscow if ET were impermissible, and he thought not. To my knowledge, the Vatican supports scientists in this branch of Astrobiology. So I don't think there is any contradiction between the Bible and ET. In fact, I would even go so far as to say that the Bible demands belief in ET, since angels, demons, cherubim, seraphim and God himself are not terrestrial.
But this answer doesn't really satisfy the underlying unease that motivates every audience to ask about ET. It would seem that Bible presents a linear view of history: a creation, a fall, a redemption, a consummation. Nowhere in this linear chain is there a place for a meaningless digression into other worlds filled with ET. Somehow ET upsets the cause-effect chain that Aquinas said takes us from our present world of Dow-Jones and taxes back to the Creator of the universe. So like a pebble in the shoe, we are annoyed, we can't get rid of it, it won't fit our worldview.
This post is intended to address that scruple, and show how time and our universe isn't linear, that our conception of the Bible is too narrow, and that our god is too small.
Linearity
We are accustomed to thinking of life like a car repair manual. "First remove the bolts holding the carburetor, then remove the bracket..." And when you finally have the whole mess apart, and replaced the thingummy that was broken, the manual unhelpfully says "Assembly is the reverse of disassembly." As if you could reverse the action of the screwdriver that pried the two rusted pieces apart! What am I supposed to do, get out a hammer?
But that is the point. We expect cars to be taken and put back together linearly. And when we find we need three hands to compress the spring while inserting the bolt and holding the wrench, we curse the manuals and GM and whoever invented cars. But what if the world doesn't just need three hands, but a thousand hands and a million prayers? What if what you do today affects who your grandchildren marry and the failure of the Byzantine Empire? Yes, I know there is a subgenre of Sci-Fi literature about time-travel and the
logical conundrums this elicits, but this is because Sci-Fi implicitly excludes a God who dwells outside of time.
Let's use a different analogy. Suppose the world and time are like a vast jigsaw puzzle that God is assembling on His dining room table. Does He have to put the pieces together in a row, or can He work on one section at a time before assembling the sections? He has the box-top, He knows what it is all going to look like, but what dictates the order? We, the little puzzle piece, don't know the big picture. Some things make sense and fit together, some don't. And it would be wrong for us to think that because the piece next to us doesn't fit, that somehow the big picture is ruined or changed or forever altered.
Continuing the analogy, the Bible gives us a big picture of the world. 99% of the Bible is about things on this planet, though some extra-planetary material occurs in Gen 1:1-2, Job 1:6-12; 2:1-6, and much of the book of Revelation. So it is not surprising that we tend to think of this book as a Earth-centered story, a jigsaw landscape with a tiny inset in one corner with a throne on a glassy dias. And we think the Bible is mostly concerned with getting the puzzle pieces all lined up to finish the landscape. Then when the astronomer comes with his pictures of the Andromeda galaxy and makes earth an inconsequential dot in a universe without any emerald rainbows, we have a bad case of cognitive dissonance. Something just isn't right.
Non-Linearity
But what if we have a puzzle box-top like those DVD covers for Hannah Montana that show two different pictures depending on the angle you look? What if one angle shows the galaxy, one angle shows the great white throne, and another angle shows the pastoral landscape of Earth. How can this be? Well if you get out a magnifying glass and look at that DVD cover, you will see that it is covered in tiny little ridges which are plastic prisms. A slight change of angle, and you see a different side of the prism, which directs your gaze to a different picture. Using microlithography techniques developed for microchips, those prisms can be made so small that your eye doesn't even see the little lines in the picture. (I know the fellow that made these clear plastic sheets for your computer monitor so you would be able to watch 3-D movies at home, but the company that contracted him went bankrupt in the dot-com crash, and he doesn't hold the patents.)
But the point I'm trying to make, is that by patterning creation down to the microscopic level, the big picture can change abruptly and discontinuously. There is meaning at every level of life, from the big picture culture down to the microscopic number of hairs on your head. And they all interact with each other. The car repair manual assumed that your car is made of sizeable, discrete units that connect to each other in only one way, and therefore repair consisted of a finite number of steps to remove and reattach units. But now imagine that there were a repair manual for surgeons. Would it read the same way? No, because they recognize that life is a unitary whole, and one can't remove the heart without simultaneously keeping the blood circulating and the lungs adding oxygen. Nor would a surgeon's manual say "assembly is the reverse of disassembly" because it manifestly isn't. The scalpel that cuts the flesh can't be reversed, but sutures have to be employed to hold it back together again.
These are spatial examples, but we can also give temporal examples. Does a man's life consist in the abundance of his possessions? Is a man's life the successive collection of accomplishments: adding a boat and a vacation home to the three cars and family dwelling that were added to the wife and two kids that were added to the diploma and first job? What describes the successful trajectory of a man's life through time? Is there a non-linear connection between the past and the future?
Yes, time is invariably linear, and despite many wishes and desires otherwise, it cannot be undone. But even so, one can foresee the potential future, and shape the decisions made now for the future that is to come. In that sense, the future does affect the past, just as much as the past affects the future. If my goal is a mansion with a 3-car garage, then I will chose a profession and lifestyle that will achieve it, and being an indigent Franciscan friar will not be on the list. This is too obvious to need explication.
But now suppose that you are given the jigsaw boxtop, and you can see 1000 years into the future as well as a 1000 years into the past; you can see 100 yards across the fence to your neighbor as well as a million lightyears to the next galaxy. How will that knowledge affect your decisions? You would not merely be concerned with your children's schooling, but with your grandchildren's schooling and your great-great-great-grandchildren's schooling. You would not just want to learn sums and grammar in school, but would want to learn Moses' and Elijah's curricula as well. You would not just worry about the unseasonable weather that affects the price of cornflakes today, but the famines of the Dark Ages and the threat of Global Climate change tomorrow. In other words, you would see yourself from the global and eternal perspective of God and adjust your life accordingly.
Against Determinism
I've tried to show that if the universe in its time and space dimensions is known by God and revealed to us, then we are no longer living in a linear world where effect follows cause from the creation to the final apocalypse, because we can anticipate the future and therefore affect the past. It isn't time travel, but neither is it determinism. It is a tangled web of causation and effect, where everything affects everything else, and the whole is known by God.
Now just because our futures are known, does not mean that our lives are fated, determined, impervious to will, because determination implies a linear chain of cause and effect. Suppose now that you knew that you were going to die if you steered into oncoming traffic, and chose to remain in your lane. In what sense was your choice determined? You anticipated a future that did not exist in your past, and ordered your life accordingly. But there are an infinite number of potential futures, and therefore an infinite number of causes for your behavior. Does it even make sense then to say that our lives are deterministically decided by our past? No one could reproduce your life like some preprogrammed robot because no one could collect all the infinite futures that made up the choices in your life.
And likewise, when we see more of the future, we have even more choices to make. When the Bible shows us even a glimpse of the jigsaw boxtop, it hugely changes the decisions and life we then live.
Against Functionalism
BF Skinner famously said that the brain is a black box that we don't understand, but if we watch what goes in and what comes out, we can accurately predict the behavior. His view is called behaviorism, making the assumption that the brain or person or animal is an autonomous machine whose continuing existence can be described by functions. He would say that just as a computer is predictable such that programs collect data and generate output, so also humans are just biological computers.
In response, I would say that Skinner made two fundamental errors. In the previous section we pointed out that humans can anticipate the future. This means that output, or even potential output can be redirected back into the input. One of the fathers of the modern computer, Von Neumann, showed that when a computer is fed in data that comes from its output, this recursive loop makes the computer completely unpredictable. Thus, Skinner's hypothesis that he can predict outcomes merely from inputs is already falsified. Modern neuroscience refers to this anticipation of the future as the "concept of self", and many
books have been written on it without, seemingly, any progress on understanding or describing it.
But the second error Skinner made is equally pernicious. He assumed that the box could be isolated from its surroundings. Suppose the box was inside another box which included Skinner himself. How could he separate his own observations from the input into the box? Suppose Skinner's own surprise at the output became another input, how then could he predict anything? It is a common problem in physics, that to measure a
small effect, enormous effort has to go into the design of the measurement apparatus to isolate it from its surroundings. If it cannot be isolated, no useful measurement can be made. Functionalism assumes that pieces can be isolated from the whole, that the total is made up of the sum of its parts, and we have just seen why this cannot be done.
We mentioned above how knowledge of the future ties us into a web of meaning, now I am arguing that knowledge of our surroundings ties us into a web of existence.
Web of Existence
If reality, as Democritus and its modern equivalent of methodological materialism, would want us to believe is made up of discrete particles bouncing around in the void, then there is no web of existence. All interactions are local interactions, all influences come from atoms or photons hitting us or being emitted. And if we were to put our experiment or our baby in a box, then it would be isolated from the rest of the universe, and could be studied as Skinner desired. But if, as quantum mechanics and Michael Faraday both said, there are long-range forces that influence the experiment, if there are astrological signs and invisible fields and ancestral spirits that can make a difference, then the experiment in the box will never be conclusive.
Well, you might argue, we just have to make the box bigger (or smaller) to include or exclude all those extraneous effects. If the position of the planets have an effect on our future, let us make a box that incorporates the Solar System, and then we can be materialists again. Or if the mind and will are hard to incorporate into the model of a baby, let us just shrink the box down to one cell in a baby's brain. Surely by one method or the other, we can find a unit that can be understood in its entirety without invoking extraneous influences.
Let me suggest that it can't be done. At every spatial scale, from the subatomic electron to the universe itself, the web of existence connects each part. The conceit of science, the hypothesis of the Enlightenment, the power of physics fails at the very point where it tries to understand purpose or causality, for no system can be isolated from the whole. This is not to say that physics can't make progress, for we can decide to ignore the effects of this or that influence for the sake of theory, but we must recognize that all theories, as
Einstein said of quantum mechanics, are essentially incomplete.
Let me illustrate this point with some examples taken from different spatial scales. But first we need to isolate what it means for something to be influenced.
Information Flow
Newton would have said that influence is a force, Laplace would have said it is an energy. But when I plug in a curling iron or a shaver into the bathroom electrical outlet, they may both use the same amount of electrical energy, yet they produce very different results on my beard. 19th century physicists explored this connection between energy and work, finding many other quantities that were important and distinct, giving them names like "entropy" and "enthalpy". In the 20th century these concepts were extended to new inventions like telephones and computers, and out of this marriage came "information theory".
The idea is that not only do particles have energy or motion, but they also have organization. Ice, water, and steam are all the same particles, but with differing organization. Entropy is a measure of their disorganization, and conversely information is a measure of their organization. Just as energy is conserved, never lost but passed from one particle to another or stored in chemical bonds or other containers, so also entropy is a strangely conserved quantity, never decreasing but either staying the same or increasing. Since information is the inverse of entropy, it would seem that the world and the universe should be always getting messier and less comprehensible, yet this is not what we observe. Instead, beginning with the maximally disorganized Big Bang, the universe has become highly organized into galaxies, stars, planets, plants, animals and us. No physicist has been able to explain it yet.
Stephen Hawking, the MS-disabled physicist who wrote A Brief History of Time, found an inkling of the solution when he argued that black holes do not reduce the entropy of the universe, but conserve it by emitting entropy as they swallow matter (Hawking radiation). It would appear then, that the entropy of the universe is constant, and conversely, the information content is also constant. Thus the information found in our bodies, in our world, in our galaxies had to be there from the beginning of creation.
So generalizing Hawking's discovery, there must be a mechanism uniting all the matter of the universe such that destruction of order in one place is offset by creation of order someplace else. This need not be a force, but it does need to be informational, it does need to encode order.
One further conclusion also derives from thermodynamics, and that is that the communication of order must be point-by-point. This comes from a proof that in thermodynamic equilibrium, everything must come to the same temperature, independent of what the paint or material it is made of. That is, if my daughter totals my car in an accident, thereby increasing the entropy of my life, it will do me no good if a rural farmer in Szechuan suddenly finds his rusting hulk restored to mint condition. In this example the total information of the universe might stay constant, but there will be a local imbalance which if it were to continue, then someone could make a good living shipping restored cars from China to America, violating the economic principle that "there ain't no such thing as a free lunch".
So point-by-point entropy balance means that small-scale information is communicated at small-scales, large-scale at large-scales, at every point there is continuity and entropic equilibrium.
[All you physicists out there are going to claim I've just proposed perpetual motion, but hold your criticism to the end of the blog.]
What does all this jargon mean? It means that my little Skinner box is permeable to information flow. If I decide to put a flower in my box and vaporize it with a laser, the information in those petals must go somewhere. Nobel laureate Eugene Wigner puzzled over the way in which the observer's knowledge of a quantum experiment affected the result, and argued that personal knowledge was a form of information flow. The late great physicist John Wheeler (and deserving of a Nobel) argued that the information of the Universe could be the result of it observing itself, just as we observe ourselves. Others have argued that the gravitational field of the universe is negative energy and therefore contains negative entropy or the information needed to offset the Big Bang (which makes gravity into some sort of god!) Many Christians see in these paradoxes the need for an external observer which they interpret as God. Thus the information content of the universe is constant because it is all in the mind of God who does not change.
But my interest in this post is not the origin of universal information or even the flow, but in the consequences of information equilibrium. (Information in the temporal realm is treated as information flow or dynamics and is complicated by historic terminology of cause and effects. But from a Einstein 4-D space-time viewpoint, it is no different in principle than spatial ordering.) If we are to argue for a point-by-point equilibrium, then there must be information at every spatial scale.
Now in physics, when something looks the same whether you look at it with a telescope or a microscope, we say it is "scale-invariant" or more succinctly, "fractal". You may be familiar with the famous Mandelbrot fractal which can be displayed on a computer, and no matter how many times you zoom in on it, it looks exactly the same. So my claim is that information permeates creation in exactly the same way, that reality is an information fractal, thick with the purpose of God.
Fractal Reality
To illustrate my point, I will try to use some contemporary findings in the sciences to show the fractal characteristics of nature.
Atoms: are one-trillionth of a meter (~yard), and you would think they are unaffected by those long-range forces that afflict bigger objects: Big Bang, will, self-consciousness. However, in the beginning of the 20th century it was discovered that atoms are fuzzy blotches, that only condense to a point when they hit a detector, but the rest of the time, exist as poorly confined waves. So poorly defined are they, that they can fill the entire box with their probable existence, and in fact, if they haven't been measured recently, fill the entire Solar System or galaxy with their probability, which was Einstein's objection in the afore-mentioned EPR paper. In the case of photons, we can't even be sure how many of them we have in our box, since "photon number" is not a good (conserved) quantum number! Wigner's concern was that just by my interest in them, I've affected their behavior, demonstrating that indeed, atoms interact at long distances with information.
Proteins: are the building blocks of life. They are long chains composed of only 24 or 26 types of amino acids, manufactured by little factories in the cell called ribosomes. If they remained strands of spaghetti they would be pretty useless, but other little "finishing schools" in the cell fold these spaghetti strands into three-dimensional machines with specific functions. Think of the entertainer at the zoo who twists tubular balloons into daschunds or swords, only the proteins would be more like a block long, and the daschund would be complex enough to walk on his own. After decoding the DNA genome, scientists have set their next task as explaining how proteins fold, and found that it is at least a 100 times harder than decoding the string of amino acids that make it up. Not only that, but some proteins can fold up in multiple ways, such that the Mad Cow disease that turned cow brains into swiss cheese, turned out to be a protein that refolded wrong and forced its neighbors to refold the wrong way. Thus the information in a protein is not just the sequence of amino acids determined by the DNA but the manner in which it is folded up, so that information resides at the nanoscale and the microscale and is communicated by not just the nanoscale DNA but the microscale cell.
Cells: range in size from a hundred billionths of a meter all the way up to ostrich eggs, but the typical cells in your body are a millionth of a meter. At the time of Darwin, it was thought that they were little bags of salty water, but the last 30 years of biochemistry have revealed them to be a hive of dedicated nanomachines. If you haven't seen the animation sequence from the Expelled movie, get a biologist friend to narrate and you'll be amazed at what is going on in a cell. The very fact that cells can move like an amoeba is a consequence of a network of proteins that form tubes which attach to the cell walls and then push or contract depending on the direction the cell wants to go. There might be thousands or millions of "tubulin" proteins involved in this job, yet each one of them knows to contract or push based on the overall purpose.
PhD scientists think they are state-of-the art when they can make a robot the size of a fly, using microships and microsensors, but a cell is 10,000 times smaller and a lot smarter, with many more sensors and flexible responses, not to mention self-replicating. The ability for an entire cell to coordinate its response shows that information is transmitted from the nanoscale to the multi-microscale, and when cells interact with each other, information flows at the milliscale.
Organisms: range from microscopic "water-bears" to blue-whales, and show purpose and information flow over all these scales. When whales hunt together in pods, or migrate from south to north poles, then information flows all the way up to 1000's of miles.
Our Solar system: doesn't appear to have the same internal "purpose" as living things, but it does demonstrate organization. Guillermo Gonzales was booted out of Iowa State University for writing a book on the design of the solar system. Not only does the Earth have to be a certain distance from the Sun for liquid water to exist, but it needs an unusually large moon for stabilizing the day and forming tides, it needs Jupiter to be where it is to protect the Earth from asteroid impacts, it needs the comets out in the Oort cloud to provide the water for the oceans after the initial planet building stage was finished, it needs the Sun to be a G-type star to provide the right mix of heat and light, it needs the solar system to be in a branch of the Milky Way where there aren't too many stars to collide with and steal the planets away. In other words, this is a rare Solar System, one that has a lot of information content. And it stretches from the 12,000 miles of the Earth's diameter to the 2 lightyear diameter of the Oort Cloud.
Conclusion
So in conclusion, we make a big mistake when we think that God acts in discrete miracles at widely spaced moments in history. The "God-of-the-gaps" is not only bad theology, but bad physics, violating the point-by-point equilibrium of information. Rather we live in a web of influences from the very smallest electron to the biggest objects a telescope can see, and in a web of meaning from the dim reflection of creation to the future conflagration of fire. Extra-terrestrial life then, folds into the grand scheme of God, who perhaps used billions of comets with billions of microbes to concentrate the information on our Earth to produce us. The Bible doesn't just tell us that the creation of man is the culmination of the creation of Earth, but the culmination of the creation of the entire galaxy, for from the very beginning it was a universe filled with the information of God.
THE WORLD is charged with the grandeur of God.
It will flame out, like shining from shook foil;
It gathers to a greatness, like the ooze of oil
Crushed. Why do men then now not reck his rod?
Generations have trod, have trod, have trod;
And all is seared with trade; bleared, smeared with toil;
And wears man’s smudge and shares man’s smell: the soil
Is bare now, nor can foot feel, being shod.