Sunday, January 26, 2014

A Species Lost in Both Space and Time


I.

It’s difficult to find the exact boundary between the Australopithecines, the genus of upright animals thought to be ancestral to the genus Homo, and the first true humans. But if we assume something like Homo habilis is the first truly distinct member of our genus, we must try to picture the life of these earliest humans on the African savanna some 2 million to 2.5 million years ago. How dauntingly huge the world must have seemed to them! Probably moving in nomadic groups, the earliest of our kind gathered food from an environment over which protracted walking was required. Who knows the true range of their wanderings? They trudged across the surface of their apparently huge home at ordinary walking speed,  perhaps 3-4 miles per hour. (Even running as fast as they could, were they able to reach anything like sapiens running speeds, perhaps 27-28 miles per hour in short bursts?) Their world must have appeared to be endless, if the exertion required to traverse its surface was any indication. (Of course, if they possessed any concept of the totality of the world, they probably saw the area of their own migration as its full extent.)  A more advanced type of human (either a descendant of habilis, or an entirely independent offshoot from a common ancestor, depending on the hypothesis accepted) known as erectus, began the human diaspora out of Africa, perhaps as early as 1.5 million years ago. (It is now thought that erectus did not survive as a going concern in Asia, and that a later African sapiens group became the progenitors of modern humanity.) Their migration may simply have been a matter of moving base camp a few hundred or a few thousand feet a year, depending on the circumstances, or it may have been a migration punctuated by long journeys stimulated by desperation or unusual conditions. (See The Diaspora of Consciousness.) But whatever the actual timetable of a particular group’s journey, the expansion ultimately took on a truly epic nature. Think of what physical barriers these travelers must have encountered. We have no written record of their experiences, but their travels must have been characterized by long periods of dull, seemingly endless plodding punctuated by huge challenges and harrowing dangers. And these dangers were not being met by humans of great size and tremendous strength. The height of the average member of the genus Homo, as we will examine in greater detail elsewhere, has averaged somewhere around five feet (about 1.5 meters), with males generally taller than females. A small mountain of 300-400 meters in height would be formidable to such a being; a mountain in the Alps would be huge; and a mountain in the Himalayas would seem unspeakably gigantic. Our ancestors roaming the eastern hemisphere encountered such giants, and surely must have felt dwarfed by them.

In these encounters with the world, undoubtedly many travelers lost their lives along the way. And among the survivors, an idea was deeply impressed upon their consciousnesses: the world is enormous.

As Homo sapiens evolved, spread, and founded a wide variety of new cultures, each group undoubtedly had its own conception of the world’s extent, again, a conception generally limited to the area in which their tribal hunter-gatherer group roamed. Once larger numbers of permanent settlements than had existed in the pre-agricultural world had been founded, and literacy became commonplace, humans (or at least that minority which was educated) began to gain some understanding of the actual geography of the region where their group lived. Until recent centuries, such knowledge was sketchy and speculative at best. When humans began venturing out on epic sea journeys, from the Phoenicians in the early 12th century BCE to the Chinese and Western Europeans beginning in the fifteenth century CE, the sense of the Earth’s hugeness was reinforced, as was the impression of the difficulty in crossing the Earth’s surface. (It was not unusual, for example, for a pilgrimage from the German states to Jerusalem to take the better part of a year, owing to a variety of difficulties.)

Regarding the size of the Universe, the height of the heavens themselves, our ancestors had no real conception. In early Mesopotamia, those who stood at the top of ziggurats were thought to be appreciably closer to the stars. Archimedes, perhaps the most brilliant mind of the Greco-Roman Classical era, calculated that the Universe was, in our terms, about 12 trillion miles in diameter—what we would call 2 light years. And with the notable exception of Aristarchus of Samos, most educated people believed that the cosmos rotated around us. Aristotle built his cosmology on this assumption. The great astronomer Ptolemy deeply influenced both the Hellenistic Greek world and later the educated Arabic-speaking world through his epic work, and both official Christianity and Islam assumed its absolute accuracy.

But there were observations that troubled many adherents of geocentrism. The orbits of planets, particularly Mars, seemed “eccentric”. A weird, elaborate system of “epicycles” was invented to try to clear up the growing numbers of observations that could not be made to fit into an Earth-centered Universe.
 
Beginning with the work of Copernicus in the 16th century CE, the picture of a geocentric cosmos began to be superseded by a new conception of the heavens. As astronomers began to broaden the scope of their investigations in the centuries that followed, facilitated by new and more powerful technologies, the size of the physical Universe seemed to “grow”.

In the last century or so a revolution has taken place in the human understanding of our planet’s physical relationship to the Universe. Between 1917 and 1932 the most massive expansion of our conception of the Universe’s size that has yet taken place occurred. With the discovery during this period that the Universe was expanding, that it contained enormous numbers of other galaxies, and was very, very old (from the human perspective), all of our previous conceptions of the cosmic order were systematically overthrown. And with the overthrow of our conceptions of the Universe came another, unexpected result, one which many people have yet to confront: the overthrow of the centrality of the human race in physical reality. This development is momentous, perhaps as momentous as anything humans have ever discovered about the world, and yet its full impact has yet to be felt.

 

II.


Our small size in relation to the Earth turned out to be deceptive; it didn’t give us a picture of our world’s true place. In the larger context of the physical universe, the Earth is almost unimaginably miniscule.
We can begin by considering the Earth in relation to objects in our own solar system. The Earth, large as it is to us, is tiny compared to Jupiter, which has a volume more than 1,300 times that of our planet. (The perpetual storm in Jupiter’s atmosphere, the Great Red Spot, is in itself three times the surface area of the Earth.) The size of our neighborhood star, the Sun, is even more overwhelming. The Sun, some 864,000  miles in diameter could hold our entire planet over 1,300,000 times. A single arc of gas erupting from the Sun’s surface would utterly engulf our planet were it within range of us. The diameter of the planetary orbits in the Solar System our Sun rules over (counting the dwarf planet Pluto) is more than 7.5 billion miles as compared to around 7,900 miles for our little world—a ratio of more than 949,000:1. But that’s just the start of the measure of our cosmic insignificance.
The Sun is merely a star of average size. There are, not terribly far from us in the Galaxy (relatively speaking), many stars of such immensity that they dwarf our Sun. Alnilam is 27,000,000 miles in diameter, capable of holding our Sun 30,500 times and the Earth almost 39.7 billion times. Menkar, a red giant, is 48,000,000 miles in diameter, more than 170,000 times the volume of our Sun and 221 billion times the volume of the Earth. Betelgeuse, a dying supergiant, is 433,000,000 miles in diameter, some 125 million times the volume of our Sun and more than 1.6 trillion times the volume of the Earth. And VY Canis Majoris, the largest star in the Milky Way, has a diameter that on the low end is estimated at 1,600,000,000 miles, making it more than 6.3 billion times more voluminous than the Sun and 8.3 quadrillion (8.3 x 1015) times the volume of the Earth.
Astronomical distances and dimensions are so gigantic that they are usually measured in light years (or parsecs, which are about 3.26 light years). A light year is the distance light, the fastest known thing, travels in a vacuum in one Earth year—a distance of 5,878,499,810,000 miles. The Milky Way Galaxy, in which our Sun is so ordinary, measures anywhere from 100,000 to 120,000 light years in diameter. Therefore, the Milky Way is (to be on the low end of the estimate) 100,000 x 5.878499 trillion miles across—about 588 quadrillion miles. This is more than 74 trillion (7.4 x 1013) times the diameter of the Earth. The galaxy contains anywhere from 100 billion to 400 billion stars, depending on the number of dwarf stars that may exist. (Incidentally, astronomers locate our solar system in a partial spiral arm of the Milky Way Galaxy known as the Orion Spur. We are 26,000-30,000 light years from the galaxy’s center). On such a scale, our planet’s size is already negligible. But the picture gets worse.
It was not understood until the 1920s, through the brilliant work of Edwin Hubble, that the Milky Way Galaxy was far from being the only one in existence. Since Hubble’s time, we have vastly improved our observational tools, including the orbiting of space telescopes (the first one named in Hubble’s honor, fittingly enough). And the story they tell humbles us even more. There are whole clusters and walls of galaxies, all held together by gravity. NASA recently estimated that there were 125 billion galaxies, and emphasized that infrared cameras, radio telescopes, and x-ray cameras might greatly increase the estimate. Most estimates run from 100 billion to 200 billion total galaxies
The distances between us and the closest full-fledged galaxies are staggering. One of the nearest galaxies, the Sagittarius Dwarf Elliptical Galaxy, is 75,000 light years away. This means a beam of light that started traveling from our galaxy at a speed of over 670,000,000 miles per hour 75,000 years ago, before any humans were in the Americas, is just arriving at Sagittarius now. The Small Magellanic Cloud, another “close” neighbor, is 210,000 light-years away. A beam of light that started from our galaxy to the SMC at about the time that modern Homo sapiens were first evolving is just arriving there now. And the nearest spiral galaxy to us, Andromeda, is so far away that a beam of light that left our galaxy when humans were no more than a handful of Homo habilis types living in eastern Africa 2,000,000 years ago, is just arriving there now.
Other galaxies are not just tremendously distant. Some of the galaxies in our Universe are mind-bogglingly huge as well.  In 1990, Science News announced the following:
By carefully recording the faint light surrounding a bright galaxy at the center of a dense cluster, a team of astronomers has uncovered evidence for perhaps the largest and most luminous galaxy known. This gigantic agglomeration of stars, which sits at the center of a rich galaxy cluster called Abell 2029, extends 6 million light-years in diameter (more than 60 times the width of the Milky Way) and emits more than a quarter of all the light produced by the entire cluster.


Such an object has a diameter 4.7 billion times the diameter of our Solar System’s planetary orbits. This would be as if our solar system were eight one-hundredths of an inch across and the giant galaxy in question were roughly the diameter of North America from the Arctic Circle to Colombia. By my calculations, this enormous galaxy in Abell 2029, if seen as a circle, would be more than 22 quintillion (2.2 x 1019)  times the area of a circle represented by our solar system.
And when the Earth is finally compared to the entire physical Universe, the human species all but vanishes completely. The Earth’s polar diameter of about 7,900 miles must be compared to the estimated 156 billion light years diameter of the Universe. (We should recall that space can expand faster than the speed of light.) The number of miles represented by a light year, multiplied by 156,000,000,000 yields a staggering result:  the estimated Universe is, compared to the Earth’s diameter of 7,900 miles, more than 116 quintillion, or to be precise, 116,081,768,400,000,000,000 (1.16081768400000000000 x 1020) times larger in diameter.
Atoms range in size from 1 x 10-10 to 5 x 10-10  of a meter in diameter. The Earth is 1.2713 x 107 meters in diameter at the poles. Therefore, the Earth is about 127.13 quadrillion times (1.2713 x 1017) the diameter of the smallest atom. In other words, the Earth is smaller in relationship to the Universe than the smallest atom is in relation to the Earth by a factor of about 1,000.

III.

The creation myth believed until recently by most humans in the Western world seemed to posit a Universe no more than a few thousand years old. Interpreters of the Book of Genesis, for example, have often come up with a figure of 6,000 years for the age of the cosmos, with humans appearing within the first week of the Universe’s existence. Christian, Jewish, and Muslim fundamentalists generally agree with this assessment.

In The Kojiki, which includes the Japanese creation story, the age of the Universe is said to be at least “millions and millions” of years, although the ancient Japanese had nothing but supposition on which to rest this estimate. In Chinese mythology, one source puts the age of the Universe at 18,000 years. Hindu cosmologists speak in terms of enormous time periods. One Hindu belief asserts that the Universe is more than 314 trillion years old, for example. But all of the enormous time periods postulated in Hinduism are specifically linked to the age of the various manifestations of God, and in all Hindu hypotheses about the creation of the Universe, humans are present right from the start. We must assume, additionally, that the Hindu estimates, like those of the Japanese, are based on supposition and imagination, and not on any empirically-based observations.


All cultures have creation myths, but they seem to share one common theme: humans are of greater or lesser importance in them, but one of the central purposes of the act of creation by God or the gods or the infinite, if not the central purpose, is the creation of humans, and humans appear either immediately at the beginning of the Universe or not terribly long after it comes into being.  All creation myths share another commonality, as well: they have all been shredded to pieces and superseded by the discoveries of modern science.

Recent findings from the Wilkinson Microwave Anisotropy Probe (WMAP) space project indicate a universe 13,800,000,000 years old. The earliest member of the genus Homo, Homo habilis, is thought to have emerged no earlier than 2,500,000 years ago. Even with the discovery of a find called Toumaï' (not a member of Homo) in Chad, we can say that the hominid line emerged no earlier than 7,000,000 years ago. Therefore, the genus Homo has occupied approximately less than two one-hundredths of one per cent of the total existence of the Universe (more precisely about .01825% of the Universe’s age). To use a  slight variation on how Carl Sagan once put it, if the entire age of the Universe could be reduced to one year, the genus Homo did not emerge until around 10:30 pm on 31 December. (See the section of this work entitled, The Emergence of Human Consciousness: A Chronology.) In this scale, the oldest member of sapiens, perhaps 200,000 years old, emerged at about 11:52 pm on that fateful last day. The earliest agriculture in the Fertile Crescent, about 11,000 years before the present, began about 25 seconds ago, the earliest written records, about 5,000 years old, emerged about 11 seconds ago, and all of human history since the year 1500 has, in this Universe shrunken temporally to one year, taken place over the last 1.15 seconds. The life span of a centenarian on this scale is reduced, therefore, to about one-fifth of a second. The life span of a person of typical life expectancy in the advanced countries would be about one-seventh of a second.
Some people might prefer to think of these issues by picturing an enormous timeline. So let’s consider this. Let’s say you have a timeline that stretches out 1,000,000 meters in length—1000 kilometers, or about  621.3 miles. Each year since the Big Bang would be about 0.07299 millimeters on such a scale. On this scale, we would have to travel 664,293 meters—almost two-thirds of the total length of the line—to reach the beginning of the Earth. We would have to travel almost 999,818 meters on that timeline to reach the first member of the genus Homo. We would have to travel 999,985 meters to reach the first sapiens,  999,999.2 meters to reach the earliest civilization, and 999,999.6 meters to reach the earliest writing. The last 500 years of human history would take up about the last 36.495 millimeters of the timeline, more than 999,999.96 meters from the start, the lifetime of a centenarian would be 7.299 millimeters from the end of our one million meter line, and the lifespan of a typical human in the advanced nations (about 75 years) would take us less than 5.5 millimeters from the end of a line 1,000,000 meters in length.
We are an amazingly recent occurrence in this iteration of the Universe. Even in comparison to the Earth, a mere 4.6 billion years in age, we are insignificant. Imagine if the Earth were a sentient, conscious being. Further imagine that it had the powers of observation and evaluation. Can you imagine how fleeting the life of a seventy year old person would be to such a being, a being almost 66,000,000 times older? It would be as if our 70 year-old simply appeared out of nowhere and disappeared almost instantaneously. The rhythms of the Earth are unimaginably slow in comparison to the frantic pace of our lives. The Earth’s memory would include geologic eras measured in tens or hundreds of millions of years. It would contain the earliest glimmerings of life, the upheavals and splitting apart of whole continents, the births, lives, and deaths of countless entire species. The recession of the last ice age, some 14,000 years ago, would be a recent memory, comparatively speaking, to such a being. It would be the equivalent of a memory our 70 year-old would have of something that happened 45 minutes ago!
We are newborns; we are very, very young children of space-time and energy-matter. We were not created at the start; we were not created near the start; we weren’t even created near the middle. We are the latecomers. It took eons of time to produce us, and our reign on this tiny world has been vanishingly brief. We have only just begun our journey, and there is no guarantee that it will last much longer than it already has.

IV.


So what does this all mean? It means that all human-centered views of the Universe are nonsense, utterly indefensible on every level. It means that our myths were simply quaint efforts to explain reality, based on the superstitions and limited observations of the ancient world. These myths perhaps possess some literary or historical value, but they possess no scientific value whatsoever. Our utter physical and temporal insignificance call into question all anthropocentric views of the Universe’s origin and various physical features. To contend that the Universe was created for the benefit of a set of beings who occupy a world as ludicrously small as ours, is to stretch credulity to the breaking point. We thought we were the center of creation. We’re not. We thought the object of the Universe’s existence was to produce us. In all probability, it wasn't. Perhaps, in an unspoken way, we thought if our world disappeared it would matter to the Universe, or at least be noticed. It wouldn't.  Most humans, even though they know that the Earth is very small and that humanity is very young, still tend to embrace some variation of the view that everything was made for us. It is time, in my humble opinion, for us to disabuse ourselves of this notion. The individual human life is virtually nothing in the scale and age of the Universe in which it evolved. This is a hard truth from which we can no longer turn, and it carries implications that must be confronted if any kind of human dignity and worth are to be salvaged from the wreckage of our broken dreams and shattered mythologies.

Saturday, January 25, 2014

How It Looks to Us: the Human Frame of Reference


I.

It has been fairly well established that humans do not perceive what has been called the “actual, free-standing reality.” It would appear that all non-deductive human knowledge of the world is mediated through the senses, which present to the brain a version of that reality, something perhaps linked to it, but not the essence of it.  Humans literally cannot directly experience this “real” reality, what Immanuel Kant called “The Thing in Itself”.  If a human were to be plunged into this “real” reality, we must suppose he or she would have no way of comprehending it or describing it to anyone else, since the human would have no basis whatsoever from which  to do so. Such a basis could only be grounded in what philosophers call absolute perspective, which can only be possessed by a fully transcendent being. This means that humans face a paradox from which they cannot escape. It is logically impossible for them to view reality from a non-human, transcendent vantage point. They cannot perceive as a human and a non-human simultaneously.

Humans can only perceive and describe reality within certain carefully bounded limits. There are, obviously, many physical limitations humans have, but here I am referring chiefly to how human consciousness processes the stimuli provided by the senses. The human nervous system seems to have evolved in such a way so as to sort out sensory input and arrange it in a form which facilitates our survival. The senses convert different kinds of energies coming into (or from within) the body into electrochemical signals that the brain uses to interpret these energies, converting them from raw sensation into the objects of conscious awareness, thus giving us a picture of reality that is comprehensible. (See Perception in a later volume.) The brain which processes and reacts to these signals appears to have evolved in a kluge-like, haphazard fashion, with many ancient functions conserved across both time and species. Within its processes, there is plenty of room for error or breakdown, and the deep nature of its functioning is not yet fully understood. 

The brain’s higher functions—ratiocination, language processing, abstraction, imagination, memory—appear to be vulnerable to physical limitations inherent in the brain’s anatomy and physiology and subject to errors caused by physical deterioration due to illness, injury, or age. Further, the brain’s intellectual functions seem to be inextricably bound to its emotional functions and expressions, which can manifest themselves in a very great number of ways. Therefore, the brain cannot be thought of as an infallible recorder of the external world.

The human attempt to understand all of this takes place, of course, within the confines of the physical brain itself. There is no empirical support for the proposition that mind can exist outside of the brain, although it is not logically impossible that it might. The brain must use its own resources to understand its own functioning. A deep paradox exists here: the very complexity that gives rise to intelligence makes the analysis of that intelligence an almost insuperably difficult task. As one neurologist put it, if the brain were simple to understand, we would be too simple to understand it.

There are many epistemological issues as well. How do we know what we know? How do we verify what we know? What is knowledge itself? Can humans have sufficient confirmatory evidence to support our contentions of validity? Perhaps we will have to settle for consistency as the chief test of our link to reality and surrender the quest for a certitude that may be unattainable.

So we must question the ability of humans to even engage in the kind of examination that I am proposing. In a sense, all such examinations of the human condition and the context in which human history has emerged are inherently, perhaps even fatally, limited and flawed. How can we put human history into the context of a reality that we cannot truly perceive? And in regard to what we believe we can perceive, we face other barriers, as well. Advanced types of communication (that is, those which rise above the level of mere gestures or simple signals) are dependent on language, which in turn is an imprecise tool (as I will stress repeatedly). So one can readily see the dilemma we face. Is language sufficient to discuss the limitations of language? If we perceive only a version of reality, how can we, with any coherence, discuss reality itself? We are trapped in the prison of human consciousness. We cannot imagine any other way of seeing the world because even the terms in which we try to imagine another viewpoint are grounded completely in our own frame of reference. It could be argued that even I don’t completely understand what I mean by what I am saying, and that you don’t either. It’s as if we are in an intellectual hall of mirrors, a world of psychological self-recursion, where we find ourselves looking at ourselves looking at ourselves. Even at the very moment that you are reading this you might realize that you are reading about reading about reading…

We read that our understanding is imperfect, and because of our imperfect understanding we cannot fully realize it, thus illustrating the very principle we fail to grasp. It’s as if the best we can do when trying to convey our thoughts and impressions is to achieve an approximation of communication, with the hope that there is enough of a coincidence between our views, our experiences, and our understanding of language that some sort of communication might be effected. (And as a matter of principle, it would appear that the more abstract our words, the more imprecision of communication there will be.)


II.


There are, naturally, perceptual similarities between humans and other animals, and these similarities are more pronounced in species which are evolutionarily closer to us. We may assume, for example, that other higher primates (such as gorillas, chimpanzees, and orangutans) have very similar sensory apparatuses. We share with them visual traits such as color perception, depth perception, and highly developed maculae. We share with them weak senses of smell. We tend to have highly sensitive hands. (This is why an understanding of the phylogenetic tree of life is so crucial—it is the basis for our assessment of our own capabilities, similarities, and dissimilarities relative to every other living thing.) Extending this, we may argue that we share many experiential similarities with all mammals. (At some point, of course, we may ask if the members of other classes have a sense of their own existence, and it seems likely to me that the simpler a thing’s brain is, the less that thing would be “aware” of its own existence, however the term aware might be defined.) Human consciousness, of course, provides us with a unique vantage point. Many other animals certainly have the capacity to learn and imitate complex behavioral patterns, use tools, teach their offspring vital skills, and even perhaps communicate in symbols (such as cetacean sounds). But it is not the uniqueness of our mental capacities, but rather the degree to which they have been developed that sets us apart. Natural selection operated with its typical ruthlessness to give our immediate ancestors brains more capable of assessing a situation and acting appropriately in it, and storing useful information in our working memory, than any other species we know of.

But we shouldn’t be fooled by our comparatively immense gifts. The human brain is both liberating and confining. Our experiences are the sum total of our sensory input and the way those inputs are interpreted, and the particular evolution of the human brain facilitates our survival and reproductive success; it does not give us infallible powers of assessment  and comprehension. Evolution has produced different capabilities in different animals, ones that we cannot truly imagine. Moreover, the different neural structures of other animals (even though many specific brain structures are conserved across species) probably create distinctive frames of reference.

For instance, no human can, by definition, know what it would be like to hear the high audio tones perceptible to dogs. Humans do not really understand the mental world created by the echolocation of bats, which may be as “real” as the visual world created by our eyes. (Some blind humans may have a version of this ability, however.) Humans cannot imagine what it would be like to experience the perception of infrared, as certain insect species can. Our perceptions and the neural structures that underlie them produce a frame of reference that is both unique and strictly limited. Humans can guess what it would be like to perceive the world as a dog, an ant, or a bat, but all of their guesses and suppositions could only be understood in human terms, an endless loop. (And if we have difficulty imagining the experience of being a dog, how much more difficult would it be for us to imagine the perspective of an omniscient being!)


III.

We are therefore confined to a limited, mediated, human-centered version of reality. We are linked to the “real” reality, but we do not apprehend that reality directly. Knowledge of the reality in which we find ourselves can be obtained in only two verifiable ways. The first is through the senses, the basis of empiricism.  Even in the empirical realm, however, we can not be certain that we perceive what others perceive. The knowledge our senses gather does not appear to be infallible in all cases, nor does it seem that the senses of all humans are identical. It would appear that there are differences in degree in all sense perceptions. Additionally, as I have noted, there seem to be energies that humans are not capable of perceiving directly, such as the ends of the light spectrum or the lowest or highest megacycles of sound. Since there appear to be realities humans cannot perceive or experience, it would therefore seem that human perception is subjective (that is to say, not absolute). The testing of reality through experimentation, the goal of which is to replicate certain conditions and control particular variables within that reality in order to assess the effect of the variables on a given phenomenon, seems to be the most reliable method by which we can gather empirically-based information.

The second way we can obtain knowledge of our reality in a verifiable way is through inductive reasoning, the basis of mathematics. Mathematics may be something that is discovered by human reason, or it may be a construct and creation of human reason. By its very processes, it may be the closest we come to a direct connection with that which is ultimately real, but we will examine that question in more detail elsewhere. (See Is Mathematics the Real Reality?)

Knowledge claims based on revelation, the basis of much of religious belief,  cannot be independently verified, but they still may be veridical.  By its very nature, revelation is not testable—it cannot be repeated and observed in the manner of a replicable experiment, nor can it be expressed as an equation. And as we move from the testable realm of physical objects and their interrelationships, or the realm of mathematical proofs, the degree of certainty we can have declines correspondingly. It is the lack of certainty that affects the human world in many ways, however humans may wish to believe otherwise.

The human frame of reference is therefore a deeply confining one, filled with self-contradictions. Humans must use language to show that language is insufficient to the description of reality. They must imagine the existence and nature of an absolute perspective they cannot imagine. They must describe their own subjective perceptions using subjective perceptions. They must use their brains to figure out their brains. They must discuss their lack of certainty using uncertain means.

So in our examination of the world, we are confronted with an inescapable reality: everything that we look at can be explained only by such phrases as, “the way we see it” or, “according to human perception” or, “as it looks to us” or, “as it seems to us.”


There is no other way for us to proceed.

Friday, January 24, 2014

The Questions

In a study such as this one, it’s necessary to define one’s objectives as clearly as possible. So these are the questions I want answers to. There is an element of incongruity in this, however. One of the premises of this book is that no human is capable of finding definitive answers to these questions or even of fully understanding them if they did.

But I still have to ask.

What is the reality in which humans find themselves, and what are its essential features? How does our perception of reality restrict our understanding of it?

How did consciousness come to be, what seem to be its main characteristics, and what have been the consequences of its emergence?

What is a human? How have humans interacted with each other? Why have humans interacted with each other in the ways that they have?

How have humans attempted to understand the reality in which they find themselves, and how have they acted on what they believed to be their understanding?

What are the variables that have affected or are affecting human history, and in what ways do they seem to interact with each other?

Why has human history taken so many unexpected turns? Why have human affairs generally been in disarray? Why has it been impossible to predict the direction of human affairs? Why do humans so often find themselves overwhelmed by the world?

What might the human prospect be, and what, ultimately, is our place in the Universe?


Propositions and Premises

Before we dive into the heart of this book, I think you have a right to be told explicitly what my assumptions, assertions, hypotheses, and perspectives are. So here you go:

All of our propositions, including naturally all of the ones I am presently     positing, are based on a point of view which is unalterably human. All of our definitions and our understanding are predicated on the anatomy and physiology of the human nervous system and the way in which that system typically creates the experience of consciousness. (Even the term "nervous system" is, in itself, a human mental construct.) Therefore, every attempt to use language to describe our experience is inherently limited.

The human frame of reference is inescapable and no examination of our      condition can be anything except “subjective” (however that term may be defined). It is logically impossible for humans to stand outside human definitions, perceptions, interpretations of perceptions, or human mental constructs. The human perspective is the only one of which we are capable, and we cannot climb out of it in any way. This study, therefore, will inevitably be a victim of its own assumptions. Its   author cannot escape the limits of his own perspective, nor can any potential reader.

Emergence is a fundamental quality of reality. Chaos resolves into a level of order, which resolves into a higher level of order, and so on.

Either mathematical probability or another in a series of periodic events triggered the beginning of the Universe. From the physical forces there emerged the particles out of which everything physical is composed. From physical reality chemical reality, biological reality, sociocultural reality, and historical reality arose in turn.

Humans are therefore an intrinsic part of the Universe. They are composed of the same materials out of  which other common physical bodies are composed. They are subject to all the fundamental rules of the Universe, and in fact reflect in themselves all of the Universe’s basic features.

The human species evolved from the larger web of life, and all human traits ultimately have their origins in this fact. The human nervous system’s evolution, especially the evolution of the central nervous system, is the key to understanding the way in which humans perceive the world around them.

There is a free-standing “real” reality that exists outside of us and then there is the reality we perceive from our human standpoint. Humans do not perceive reality in and of itself. They perceive a version of reality through a nervous system that evolved in such a way that human survival chances were enhanced.

The brain and “mind” in all probability evolved in a synergistic fashion, as intelligence facilitated the survival of the brains that possessed it. Consciousness and all other aspects of  human perception exist only within the physical confines of the brain (although the brain may—may—be able to transmit electrical signals directly to other brains by means as yet not understood.)

The human is a species of animal, not something apart from the broader web of living things. Humans are physical objects, subject to the laws and processes of biology, chemistry, and physics. Humans do not have bodies—they are bodies.

Human reality is related to the “real” reality and, in ways perhaps forever  beyond our understanding, reflects it in some way. Mathematics may be the closest we get to directly contacting this reality.         

Both solipsism (the idea that everything exists only in my own consciousness) and idealism (the idea that things don’t exist independently of our perception of them) are  fundamental errors, perhaps even definitions of insanity. We will assume that all humans are real and that the forest exists even when no one is watching it.

Organic evolution did not have as its “goal” the creation of the human species. The evolution of humans was (from our standpoint) a fortuitous event but it was not preordained. As Stephen Gould said, if we “rewound the tape” and started the process all over, there is no guarantee that anything like us would come to exist.

What humans call history is the attempt to describe the story of our species, a species which has evolved in a particular way. This evolutionary process has brought about beings with a distinct way of perceiving the Universe around them. Human history is therefore the story of what humans have experienced and done within the framework of their consciousness.

We may therefore argue that the world the humans have built around themselves is nothing more or less than a reflection of the internal functions of their brains. Those functions in turn reflect the evolutionary history of the brain itself.   Consciousness could therefore be thought of as an amalgam of instinctive, emotional, and intellectual impulses and capacities, although distinct boundaries           between these capacities may not exist.

In relation to this, therefore, human behavior is a mixture of “primitive” autonomic processes, need satisfaction, emotional expression, and intellectual processes, reflecting the long evolution of the animal, mammalian, primate, and      hominid brains in succession, although not in a seamless or sharply  chronological manner.

Human behavior is a synergistic interaction between genetic inheritance and life experience, an interaction that is relentless and ceaseless, in an infinitely  complex, shifting mosaic.

Human behavior, therefore, has exceedingly complex origins. The actions the human animal takes and the way the human animal perceives the world defy simple description (with the exception of instinctive self-defense or protective reactions, such as withdrawing one’s hand from a hot surface). The evolution of high level consciousness in the human therefore makes him/her the most complicated living thing on the planet. This complexity means that humans are capable of the widest range of possible actions and responses of any living thing, and are therefore the least predictable living thing.

The human brain has not evolved to give humans complete understanding of the world around them. It has evolved, rather, to help them survive within it—a far different mission. Survival skills and knowledge are much more strongly developed than the capacity for philosophical certitude.

No one fully comprehends his/her own motives or impulses. No one completely understands why he/she is doing what he/she is doing. There are degrees of understanding, ranging from reasonably good to totally absent.

Humans enter the world at birth not only completely helpless physically but also completely without comprehension of what is happening to them, and probably without any mental sense of being a self whatsoever. The process of growing up involves, therefore, not only physical maturation and an increasing ability to care for one’s self, but also an attempt, whether conscious or not, to make some kind of sense of the world in which the individual ego finds itself immersed.

Human consciousness evolved in group settings, and it requires interaction with other humans in a culture to manifest itself. No child’s consciousness can develop without some form of language-based interaction.

Humans generally like to have an effect on the environment around them. Humans generally like the experience of having caused something to happen, at least at first. Children quickly learn that doing certain things causes other things to occur. The adult impulse to change the world or affect history in some way may simply be an elaboration of our child-like delight in causing something to happen.

Human males and females evolved in order to reproduce and care for offspring. They did not evolve to understand each other’s complex and distinct way of processing reality. The male and female outlook and perspective are equally valid and equally part of the definition of what it means to experience the world as a human. There are degrees of maleness and femaleness in all humans, regardless of sex, and therefore even the terms male perspective and female perspective have to be qualified. There are fundamental differences between the male and female brain, but their impact on behavior and the general perception of the nature of the world is not yet fully understood. Cultural factors deeply shape gender definitions, often crucially so.

Every human who has ever lived has experienced the world in a unique way. No two human biographies are identical. We are able to relate to each other, at least somewhat, because there are enough common or similar experiences we share to permit a minimal level of understanding.


Basic human sensations (such as the perception of red, the feeling of physical pleasure, and other somatic events) cannot be described in such a way as to be meaningful to someone who has never experienced them. They are irreducibly fundamental. I have to have actually seen a red object in order for me to understand what you say when you describe something as “red”.

Language is inherently limited as a communication device. The idea of “perfect” communication is a hopeless ideal. What communication exists is based on the existence of enough experiential common ground to permit it. Language is an imprecise tool. No one means exactly the same thing by the use of a particular word as someone else, because the mental associations attached to that word in the brain of its user are unique.

The awareness that death is inevitable has probably been the major driving force behind most of the world’s religions and philosophies, as well as a major force in human artistic expressions.

The genus Homo has existed only for a brief period relative to the known Universe’s existence—perhaps 2.5 million years out of a period of about 13,800,000,000 years, less than two-tenths of one percent of the Universe’s existence. This was discovered only recently in the history of the genus.

The home of the human species is extraordinarily miniscule in the physical context of the Universe, occupying a space so tiny that if the Universe were reduced in size to an object the size of the Earth, the Earth itself in turn would be reduced to a size less than that of a single atom. This is also a recent discovery.

Humans are therefore temporally and spatially insignificant. Outside of the human community, human history means absolutely nothing (so far) and has had no effect whatsoever on the larger Universe. This could change as humans reach out and explore small areas of the Universe (or perhaps seed the Universe with self-replicating devices).

Human philosophies and religions were basically all created before the knowledge of humanity’s temporal and spatial insignificance was understood. The fact of human insignificance is not yet widely comprehended, or even accepted as true.

There is no reliable scientific way of ascertaining whether there is a god of any kind. There is no philosophically sound way of either conclusively proving or disproving god’s existence. Therefore  metaphysical explanations of human history will largely be absent from this study.

Human memory is particularly unreliable because it did not evolve to provide a comprehensive record of human experience. The development of information storage systems external to the human brain reflects an understanding of this limitation.

Human consciousness emerged before humans realized what it was (or even where it was located). Only gradually have humans understood the significance of the anatomy and physiology of their own brains.

Human consciousness creates what we call human psychology, something we only dimly and incompletely understand. Humans therefore do not have a full understanding of why they do what they do or feel what they feel.

The superior level of human intelligence relative to other animals accounts for the dominance of our species over all others and the spread of our species across the surface of the planet.

Humans have, up until relatively recently, been forced to make a living out of whatever the immediate environment provided them in the way of resources.

Because humans adapted to a wide variety of ecological niches, a correspondingly wide variety of ways of life emerged.

Because language—the use and manipulation of symbols to represent ideas and convey descriptions of the world—emerged as a property of human consciousness (in a synergistic, self-reinforcing manner), human culture was able to emerge. Language is therefore the basis of culture. Culture may be thought of as a way of life consisting of the material objects created by a group and the ideas, customs, traditions, beliefs, and methods of doing things the group passes from one biological generation to the next.

Since many, many sounds can be used to represent the same kinds of objects and ideas, many human languages emerged. The greater the physical isolation of human groups from other human groups, and the less such groups linguistically interacted with others, the more unique the group’s language tended to be.

Human society emerged out of the physical inadequacies of our ancestors in relation to the environmental dangers surrounding them. The individual human was generally no match for the kind of predatory animals, harsh climatic fluctuations, challenging topographical conditions, and hard-to-extract resources of the areas in which the early humans evolved. Only by living in groups and cooperating in teams could humans make a go of it.

Human morality emerged out of the need of humans to create rules by which the group could survive and flourish. There may also be some very deep biological roots to such concepts as “fairness”. There is no need to infer a supernatural origin for moral behavior, although such an origin is not automatically ruled out.

Human groups tended to develop, as a survival skill, “us versus them” orientations to those outside of the group. The use of violence, something rooted deep in animal evolution, to ward off such outsiders or steal their means of survival, is very ancient, very useful, and the root cause of interpersonal, intragroup, and intergroup violence. Some violence appears to have no instrumental purpose at all, and is merely the expression of disturbed mentalities.

The use of tools—objects from outside of the human body used to accomplish work—was absolutely essential to the survival and flourishing of human groups. Tool making encouraged, in a reciprocating manner, dexterity, eye-hand coordination, abstract conceptualization, and other physical-mental skills. Those who had the best brains made the best tools. Tool use facilitated survival, which in turn gave a genetic advantage to those who made them. Even better brains produced even better tools, and so on. Therefore, human tool making and human    evolution affected each other in a synergistic way.

Because humans, like almost all other animals, can physically suffer, the threat of such suffering has always been an effective tool of social control. No rational individual wants to be injured or suffer physical pain, and the knowledge of just how bad such experiences really are allows those who control the means of violence and social authority to rule over others. Fear is a very ancient tool of human interaction, rooted in the very animal natures of humans themselves.

Human sexuality has been a key variable in the unfolding of human history, as has human violence. The distance between the two is not as great as many people might imagine. Human sexual expression has covered the entire range of physical possibility, and a human’s sexual nature is a key element of his or her basic self.

Human beings as a group consistently overestimate their own understanding of the world and their understanding of themselves. The human brain is not evolved to either fully comprehend reality or to completely grasp the nature of the self and consciousness. This is because the human brain is a jerry-rigged, haphazardly evolved structure that developed as it did because it was useful from a survival/reproductive standpoint.

The human world reflects our lack of understanding. Human history has careened forward in totally unexpected ways. They are unexpected because the human species, as a group, does not understand what is happening to it at any given moment. There are simply too many variables operating at any given time for such an understanding to be even remotely possible. Human history is also affected by mathematical randomness and quantum indeterminacy. It may not even be possible to predict anything about the future direction of human life.

Human social interaction and social relationships are fraught with difficulties because of the inadequacies of human communication, the existential loneliness of the human being, and the fathomless vagaries of human psychology, itself the product of our haphazardly evolved brains.

Life and reality are ruled by a set of interrelated processes, most of which are usually hidden to human perception.
As a result of our convoluted history and fundamental ignorance, the vast majority of humans have lived lives that by contemporary standards in the Western world would be considered abysmal and miserable.

The vast majority of human beings believe there is a supernatural plane of reality, a belief which is deeply rooted in the evolutionary processes by which their brains developed. These beliefs are massively shaped by cultural inheritances as well.   

As a result of variations in human brains and individual human life experiences, there is no action, no matter how debased or atrocious, that has not been taken by at least someone, somewhere, at some time.

The average life is spent in the carrying out of routine tasks.

The average life is undramatic and ordinary. The day to day life of the human species has probably always been this way.

Many humans are certain that they know the truth of any given matter, when in all probability this is not the case.

The arts are rooted in the human attempt to explain, interpret, react to, and/or express the reality humans perceive.

The sciences are rooted in the human attempt to explain the rules and nature of reality by use of methods which strive as much as possible to eliminate all elements of  “subjectivity”, even though the sciences still operate within the limits of human perspective.

The world probably does not exist for our benefit. But who knows?


Thursday, January 23, 2014


THE EMERGENCE AND NATURE OF HUMAN HISTORY

Volume One

Joseph A. Miller


Revised Edition


©2012, 2017














To Hailey and Aubrey, Whom I Love More Than I Could Possibly Express, from Grandpa







It is not enough to say that human action is historical, and that history is an unfolding of unique events. Nothing fundamental separates the course of human history from the course of physical history, whether in the stars or in organic diversity. –Edward O. Wilson


We feel clearly that we are only now beginning to acquire reliable material for welding together the sum-total of what is known into a whole; but, on the other hand, it has become next to impossible for a single mind fully to command more than a small specialized portion of it. I can see no other escape from this dilemma (lest our true aim be lost for ever) than that some of us should venture to embark on a synthesis of facts and theories, albeit with second-hand and incomplete knowledge of some of them, and at the risk of making fools of themselves. –Erwin Schrödinger




Volume One Table of Contents

Notes on Usages and Other Matters    vii

Prologue   ix

I. First Things

Introduction    2

The Questions    14

Propositions and Premises    15

How It Looks to Us: The Human Frame of Reference    22

A Species Lost in Both Space and Time    26

The Human Situation    33

II. Hidden Realities

That Which Is    52

Self-Organization and Emergence     53

The Rules of the Game: Preface     62

The Rules of the Game: The Original Rulebook    64

The Rules of the Game: The New Rulebook     77

Is Mathematics the Real Reality?     104

Randomness, Probability, and Coincidence   112

Chains of Unintended Consequences   121

Synergy and Feedback Loops   128

Patterns, Cycles, and Shapes   137

The World as a Set of Interrelated Systems   145

The World as a Non-Equilibrium System   152

The Worlds of Reality   160

III. The Emergence of Human Consciousness—A Chronology

Condensing the History of the Universe   166

Beginning   167

The First Stars   176

The First Galaxies   182

The Sun   188

The Earth Forms   195

The Earliest Life on Earth   204

The Dominance of the One-Celled Life Forms   226

Life in the Oceans: The Animals Evolve and Begin to Spread   243

The Plant Kingdom Begins to Colonize the Land   258

The Animal Kingdom Begins to Colonize the Land   267

The Reptiles and the Synapsids Evolve  275

The Mammals   282

A Life in the Trees: The Primates Evolve   294

Evolution of the Genus Homo   328

The Diaspora of Modern Consciousness: Homo Sapiens Spreads Throughout the World   356

Human Life Since the Advent of Written Records   391

IV. Humans as Physical Beings

Humans in the Context of Life   396

The Human Animal: A General Survey of Its Composition, Structure, Function, Capacities, and Limitations   405

Aging and the Human Lifespan  436

Appendix 442

Chapter Notes and Sources for Volume One 443

Index to Volume One   478


Notes on Usages and Other Matters


When I wrote dates, I used the historian’s standard usages of BCE (Before the Common Era) and CE (Common Era) rather than BC and AD. When referring to very long periods of time, I used such abbreviations as ybp (years before the present) or mya (million years ago). When transliterating, I used the most current system in use for the particular original language in question (for example, using  the Pinyin system for transliterating Chinese to the Latin alphabet, rather than the older Wade-Giles system). In dealing with pronouns, I was not always consistent. I used the term “they” as an all-purpose, gender neutral pronoun in most cases, but sometimes I gravitated toward “he or she”. I hope no one is distracted by this practice.

I used standard American English spelling, except when referring to proper nouns used commonly in British English, or except when I was quoting a passage that used standard British English spelling.

Scientific names for the various types of living things were always italicized, as were the names of books, journals, and magazines.

I used the American system for indicating the names of large numbers.

In citing information from a source, if I have included information in brackets [such as this], it is information I have interjected and is not directly attributable to the source itself.

I habitually write in the first person. I see no reason to modify this practice in the present work. I also sometimes use contractions. I hope neither of these practices diminishes what I have to say.


J. A. Miller, Kapa’a, Hawaii, 2012



Prologue

He was entering what was perhaps the final stretch of a life he had never quite mastered or understood. He had been luckier than most other humans and yet he was immersed in darkness much of the time. Whenever he was able to pull himself out of his tired self-absorption, he looked out onto a reality that was deceptively ordinary, but many decades of living in the world had taught him that life was more complicated than its mundane façade suggested. Everywhere he looked in the larger world, humans grappled with an existence that seemed to be governed by random chance, and what many of them called “fate” or “luck”, as much as it was by human intent. He saw most of his fellow humans clinging to the hope that there was a larger reality beyond their sight, one controlled by a god or gods or spirits, a plane of existence to which they could turn for solace, reassurance, and meaning. In their fondest hopes, most humans wished for some form of eternal survival beyond the inevitable grave that awaited each of them. He could no longer hold such beliefs in his own heart, however much he wanted or needed to. He secretly hoped that he was wrong about the unseen world, but he suspected that he wasn’t.

Everywhere the human enterprise seemed to be just barely keeping ahead of disaster. Many times it couldn’t even do that. Everything seemed to be at the edge of chaos at any given moment, and yet, remarkably, the human expedition stumbled blindly forward, heading…where? Getting through the day was the business of the vast bulk of his fellow travelers, and his kind had done so, in one form or another, in one setting or another, in  one way or another, on a continuous basis for more centuries than he could comprehend. He had studied a little of the story of the humans, at least those parts that had been written down, and he couldn’t see any time in their experience when life hadn’t been either at the edge of chaos or swept up in it completely. He thought about the twists and turns of his own uncertain life, the often strange depths of his thoughts and feelings, the kaleidoscopic mixture of associations that the world triggered inside of him, and the diaphanous images and inaudible sounds that floated in the perpetual river running through his head. Standing in the evening quiet, he realized that every one of those of his kind who had ever walked on this tiny, insignificant planet had lived their own unique, unscripted drama, and been the center of their own incomprehensible universe. The history of the humans, he surmised, had been so strange, so filled with unexpected events, so baffling in its complexity, and so difficult to understand because it was a reflection of the interior world of those who had made it and been engulfed by it, people who lived in a physical reality they only vaguely understood, one that shaped them and affected them at every turn.

In his presumption, he formed an idea about why human history had taken the course it had. The idea was his suspicion that no one really, fully, completely, comprehensively understood themselves, or how they had come to be the way they were, and it did not matter if they thought they did. He decided to follow this suspicion wherever it led him, little realizing that not only would he seek to understand history’s course—he would eventually seek to understand why history had come to be at all.







I.
First Things




Introduction


I.


This book is my attempt to explain, in as straightforward and comprehensive a way as I can, my ideas about how humans acquired the ability to make and record history, the multitudinous and interconnected variables that have shaped history, why that history has taken such a convoluted and unpredictable course, and why attempts to draw meaning from history and make inferences about its future course are basically acts of futility. In a larger sense, I attempted what surely must have been a Fool’s Errand: I tried to figure out  the place of our species in the vast context of reality itself. I tried to bring together as many salient facts and observations about that reality as I could, always bearing in mind an essential truth: I am inescapably trapped in the prison of human perception and the human frame of reference—and so are you. The challenge I faced was even more overwhelming than I had expected. It was perhaps even essentially paradoxical: I tried to analyze a reality that I can only experience indirectly. Naturally, I approached this task with trepidation and a deep sense of humility. Of course, this whole exercise has, inevitably, fallen short. It did not do all that I wanted it to do. But for my own very personal reasons, I had to attempt it anyway.

This project is, ultimately, an act of synthesis, a synthesis of the largest kind, one in which I attempt to combine, in  a new way, every aspect of the human experience and the factors that affect it. There are many more qualified than I to attempt such a thing, but I wanted to see what I would discover by doing it myself. In writing this book, I was guided by the idea that if I piled up simple things, stated obvious facts, brought together data from people more educated and specialized than I, asked the right questions, and admitted what I did not know as honestly as I could, then I would end up with a picture of reality that at least seemed to be right, even though I knew it would not be complete and would only seem right to me. To put it in another way: I hoped that after I put all the pixels where it seemed like they should go—and by pixels I mean all the individual facts, questions, and observations I brought together in this work—that when I stood back from them, something that made sense would  appear to me. It did, but it was not what I had anticipated or imagined.

In order to create such a picture, I stated much that is absolutely obvious, and in reading this, it will often seem to you that I am wasting your time telling you what you already know. Much of what I said will strike you as common knowledge, and ordinary in the extreme. But there is a reason for this: only by building up layer after layer of simple phenomena could I hope to gain some understanding, however limited, of a larger, more complicated reality. In fact, the entire scheme of this book’s organization has been built around this concept, as I have tried to go from examining that which is most basic to that which is most elaborated. 

Sometimes I investigated ordinary events that are usually hidden from plain view. Sometimes I pointed out phenomena that are not noticed because we tend to screen out from our attention that which seems commonplace or routine. Further, I am of the conviction that even obvious and readily apparent objects or processes, if systematically stripped down to their essentials, can be seen in a new light. In effect, by starting with the most basic and seemingly mundane facts, it may be possible for us to work our way up through the levels of emergent reality. My thinking was that if I said enough ordinary and obvious things in the right way and in the right order, then what would emerge would be extraordinary and surprising, even though our over-all understanding will remain severely limited. Whether I succeeded is, of course, for you to judge. I believe, by the way, that once we have examined reality in this way, we can never go back to our previous way of thinking about it.

Similarly, in trying to trace the origins of our myriad problems as a species, I tried to explain how enormous, incredibly complicated problems emerge from masses of simple ones, like a series of small fires combining to make a conflagration. I also tried to demonstrate that the more variables a problem has, and the more sources of origin from which it springs, the more difficult its solution. Further, I realized the “solution” to a problem may simply tend to engender further problems, some of which may be genuinely intractable. It is as if humans are trapped by their own cognitive limitations in a never-ending game that, as a species, they cannot leave. None of their solutions to the challenges they face is permanent, all of them entail unknown risks and hidden costs,  and all of them generate unforeseen consequences that will compel other sets of humans to attempt their own stop-gap measures, ad infinitum.

In the physical world, a mass of simple things, interacting and interconnected with each other, can cause new kinds of physical reality to emerge. The ultimate physical basis of reality as humans perceive it is a collection of utterly simple units of energy-matter, totally basic in both their nature and their operation. They follow unbelievably simple rules, and do unbelievably simple things in a completely unremarkable way. But allow enough of these operations to go forward in space-time, and the seemingly chaotic nature of their interactions resolves itself into a new level of organization.

In the human world, the basic features of the human psyche and its interactions with external reality can be very simple in nature. But a mass of simplicities interacting and interconnecting can cause a complex psychology to emerge. When a large number of these complex psychologies interact with each other, a phenomenon called social life emerges. And as patterns of social life grow and merge with patterns from other regions of the planet’s surface, a new kind of world emerges.

And I followed this approach of piling up simplicities for another reason: as far as I can tell, this is how the Universe itself, and all the amazing phenomena within it, came to be.

It’s simply how reality works.


II.

In the writing of this work, I made myself follow some rules.

For one thing, I tried to get my facts straight. I’m sure I did not always succeed, but I tried. I do not like getting things wrong, but I have to admit that a lot of times I do. I did the best I could.

I tried to be honest with both you and myself. I admitted when I did not understand something. I admitted when I could not find all the facts. I admitted when my own feelings were getting in the way of telling you something. I admitted when people smarter than I am and more educated than I am disagreed on some issue that seems to be pretty important. I did not try to hide anything from you. I did not deliberately try to mislead you. (I might have done that accidentally, though; given my absurdly ambitious goals, it could not be helped.) I did not stop myself from saying something I thought needed to be said, even if I did not like it and if you do not like it or anyone else does not like it. I said it anyway.

In using words, I tried to avoid doing the following things:

I tried very hard to not use words that deliberately conceal meaning rather than reveal it. I did not say someone “expired” or “passed away” when I was trying to say they are dead now or they’ve died. In other words, I dislike euphemisms, and I did not use them, even if they would have made what I am saying less hurtful or not so blunt. I also tried to avoid using “colorful” language, expressions that might mean something to people who speak my language but would mean nothing to people who do not. You might call these figures of speech or idioms or figurative language. I did my best to not let such expressions get in the way of what I was trying to say. I tried to avoid using too many metaphors and similes, which can often be ambiguous, but I used some.

There are some other rules I tried to make myself follow. I tried really hard to never use the same term to describe every person in a given situation or place or time. I also tried  to avoid using some big, sweeping term to try to describe everything that happened in a given era, or some term I thought applied to every situation that seemed to be similar to others. In other words, I tried to avoid generalization. I tried not to judge people who have gone through experiences I have not had, although I am sure my judgments were pretty obvious sometimes, anyway. And I tried to never speak as if I have all the answers, have everything figured out, and am always right. I am too old to lie to myself in those ways.

There are other rules I followed, but I can’t think of them now.

Because I consider most of what we believe we know to be tentative, after you have read this book you may conclude that I never took a direct stand about anything, that I used language that was not definite, was not confident in its tone, or which did not seem to assert that a thing is absolutely true. This may be your thinking because I tried to avoid the error of speaking with too much certainty. By speaking with certainty I mean making a statement that something is absolutely true beyond any doubt, and which no being, however intelligent and all-knowing, could say was wrong. Because I used this definition, I was pretty strict about what I would admit is certain.

It  may seem to you, therefore, that I could not decide anything once and for all. I can only say that no question ever seems to be fully explained, and that we must always—always—leave room for the possibility that we are wrong, and that things aren’t what they seem to be.

You may sense that I have repeated myself in places. This cannot be helped. In my opinion, everything tells us something about everything else. And certain things that seem to be true in one subject seem to be true in others, so they bear mentioning in all of them. I hope you will be patient with me in this respect.

I think that the way we divide the study of reality into different parts is necessary, in one way, because reality is such a big subject, and our senses and our deductive reasoning have acquired an enormous amount of information that relates to it. But in another way, the divisions between subjects can lead us to focus too narrowly and ignore subjects we either aren’t interested in or aren’t very knowledgeable about. If we really want to form in our heads some kind of coherent idea of reality, we have to try to touch on every area that humans have learned something about. I really do not see how it could be otherwise. Although I spent most of my professional life teaching history and the social sciences, I am a generalist. I certainly do not claim to have anything like comprehensive knowledge in all areas (I am not delusional!) but I tried to incorporate everything I could that seems to tell us something important about the situation we seem to find ourselves in. I made a lot of mistakes, and I left a lot of important things out, without doubt. Any errors in the book are my responsibility alone.

And I realize something both obvious and easy to overlook: there is nothing I could write that would in any way replicate the actual experience of being alive in the totality of life. After all, reading about the world and moving through it are two somewhat dissimilar activities, even allowing for the fact that reading is a way of moving through the world. Further, any systematic analysis of the world seems, to many people at least, somewhat bloodless, devoid of the feeling with which life is suffused, a dry exercise lacking in the sensory realness of waking existence. For this, I apologize in advance, as I acknowledge another deep challenge I faced: all attempts to analyze and classify the characteristics of messy, complicated, warm-blooded life must inevitably be misleading, or at best, incomplete.

III.

This book is not about me, but I have to tell you about why I needed (yes, needed) to write it.

I suppose that I became interested in history because I found it easy, at least at first. I’ve always been drawn to stories, and the deeper I went into it, the more awe-inspiring the story of the humans seemed to me. In fact, I came to see it as simply The Story, the biggest one of them all, the biggest one there could be. Naturally, like so many boys, I was drawn to depictions of war because they seemed so exciting and dramatic to me, removed as I was from any actual experience with their subject matter. I would grow to know better later on, even though I was spared from the terrors and drudgery of combat. I matured; my perspective changed.

Later, in college, history was one of my academic specialties, and I was immersed in its disciplines in a serious way for the first time. I found its sheer complexity, the intricacy of the human relationships it described, and the story of the sweep of human events over space and time deeply compelling, even though the often mind-numbing details of human life sometimes overwhelmed me.  I began to wonder why the story of our species was so strange, why it took so many unexpected turns, and why human affairs so often came to disastrous ends.

I became a high school teacher, and plunged into the challenges of trying to educate often distracted and disinterested teenagers. Somewhat to my own surprise, one of the subjects I became interested in early in my career was physical anthropology. Although I had been trained as a history and political science teacher, I found that my research had left me without answers to some of my most pressing questions. Since I passionately wanted to know why human history had turned out as it did, it occurred to me that I needed to know what kind of animal had made and been affected by this history, suspecting that the two questions were deeply interconnected. From that time onward my anthropological studies affected my interpretation of human history. I studied the basics of human evolution, taught both physical and cultural anthropology for a while (although I did not acquire a formal degree in those subjects) and went on to complete a master’s degree in history. I also taught sociology, government and politics, early American history, and various aspects of European and general world history. And as I grew and matured in my academic work, I became more and more convinced that I could not know where we were and how we had gotten there without knowing what we were.  Little did I know the many avenues down which the pursuit of answers to these questions would lead me


IV.

When you teach history for enough years, it begins to dawn on you that human life has developed in ways that seem to defy any logical analysis. It also occurs to you that humanity’s life on this planet today is so complex and filled with interrelated variables that no one can really foresee in any detail what might happen in the future, despite the tiresome cliché that humans “learn” from history. (From where I stand, it seems that they have learned very, very little from it.)  Anyone who sees a plan of some sort in all of this is more perceptive than I, because I cannot, for the life of me, discern one. If we were to take the most intellectually gifted human being in the world of 10,000 years ago and show him or her something of the nature of human life today, I am pretty sure that person would have virtually no comprehension of it, and would be completely at a loss to explain how it got that way. If that strikes you as too extreme of a case, let us take a person from the year 1000 CE and carry out the same exercise. Looking at the aftermath of ten centuries of relentless change would leave that person bewildered and shaken. There would be, of course, some institutions he or she, if a European, might recognize—the Roman Catholic Church, for example—but even that would be fantastically different from what it was a thousand years ago. The majority of the Church’s adherents now live in places the person from 1000 CE, if he or she were a European, did not even know existed. And this medieval-era genius would, I am pretty sure, be utterly at a loss to explain what had happened to produce the world of the 21st century. If the most intelligent person in the world of 1000 CE were African, he or she would be shocked at the vast upheavals that ten centuries of change inflicted on Africa (as well as the true immensity of the continent’s landmass).  If he or she were Chinese or Indian, all of the empires and dynasties that comprised the political reality of their worlds would be gone. If the person were a pre-Columbian Native American, the virtual eradication of the multitudinous native cultures of the Americas would probably seem nothing less than an utter catastrophe, the coming of which would have been completely unexpected.

Even  the most brilliant individual from the world of 1900 would have difficulty giving a coherent explanation of how the world of today came to be the way that it is. If he or she had not seen it or studied it themselves, it is unlikely that they would grasp the enormity of the political, scientific, technological, and social changes that have swept across this planet since the last year of the nineteenth century. But we shouldn’t feel a sense of superiority over our hypothetical observers from 10,000, 1,000, or a little over 100 years ago—we’re in exactly the same situation in regard to the future as they are in relation to us. Despite our confident assertions and computer-based prediction models, we have not any more of a clue about what the world will really be like in 100 years than our observer from 1900. And any attempt to predict the nature of the world 1,000 or 10,000 years hence would be laughable, or simply an example of science fiction.

Moreover—and in a more humbling way—we still aren’t sure ourselves of how the past produced the world we have now. In fact, it is my opinion that the world is now so vastly complex that no person, however well educated, keenly informed, and gifted with fluid intelligence, really understands more than a small part of it in detail. The dilemma, as I see it is that humans, possessing a consciousness that only permits them to understand their own situation partially, are forced to act on incomplete information, whether they realize it or not. There are so many variables acting on any one of these situations, so many chains of consequence intersecting each other at each moment, so many synergies at work, and so many unanticipated outcomes being set into motion by them, that no human or even set of humans can predict the ultimate effect of any given action. Obviously, very simple actions (such as the act of picking up a pencil off the floor) are less consequential and less affected by variables, but the more our actions involve other people and the larger physical world around us, the more unpredictable their outcomes will be. Huge events, such as wars, for example, generate incomprehensibly huge and complex consequences, ones far beyond our collective ability to understand.

Given the complexity of their interaction, it was my objective, therefore, to consider as many of the variables that affect human history as I possibly could, examining each in isolation and then attempting to explain its relationships to the others. Individually, these variables are usually explicable. But the combinations in which they act are absolutely bewildering, as I believe you will see.
 
Humans are, I believe, pretty good at creating realities too complicated for humans to comprehend. I further contend that the innumerable and multivariate interactions of humans (as an entire species) with each other and with the rest of the physical reality around them, over space and time, have created problems that may be too complicated for humans to extricate themselves from. (I emphasize the word may--I am not wholly devoid of hope.)


V.

And then, there is the tragic side of our experience.

All things end; all civilizations crumble or change beyond recognition; there is nothing permanent, it would seem, to which to cling with certitude. Death will come for all of us. Nothing built by humans will ultimately last. These are the inescapable tragedies of our existence, and they are likely always to be. But there are tragedies more intimate, more immediate, and more palpable, that have weighed on us since our genus’s emergence.

I do not want to exaggerate the difficulties humans have experienced in their centuries on this tiny speck of a planet. Most lives have their share of laughter, their times of celebration, their everyday joys and satisfactions. And the point must be made repeatedly: the vast majority of the human experience has been marked by the routine, the ordinary, the commonplace, and the unremarkable.

However, we need to ask ourselves, “has human life been a good experience for most people throughout our journey from 2.5 million years ago to the present?” As I see it, the answer must be this: most humans have survived on this planet only with tremendous difficulty. The lot of humanity has been hardship, to an appalling degree. Humans, as animals, are subject to physical suffering of all kinds, and our story has been filled with disease, hunger, frequent pain, disfigurement, and premature decline. The unluckiest among us are tormented by illnesses, physical or mental, every single hour of their lives. Most humans have worked or still work like pack animals every day. Most of their lives are or have been scarred, at least part of the time, by material deprivation, fear, and uncertainty. Natural disasters have drowned, sundered, crushed, buried, starved, or burned countless humans through the ages.

But the most tragic part of our story has been what we do to each other—and to ourselves. No part of our history is more difficult for me to deal with than the terrible story of what we are capable of doing when we deny or ignore the humanity of other people—and ignore our own humanity as well.

War has been depressingly common in the history of Homo sapiens. Despite human attempts to glamorize it or glorify it, it has always been what it is today—gruesome, horrible, stupid, and destructive of both body and mind, however necessary it might sometimes be.  Over the last 5,000 years there has scarcely been a time when there was no major war raging somewhere on this planet, a damning indictment of human failure. These wars have frequently involved the mass killing of whole civilian populations, and our ability to slaughter non-combatants has risen to the point where we now, as a species, possess the means to exterminate ourselves completely. Mass killing, in fact, is arguably the greatest of all human skills. And the resources squandered in wars represent perhaps the greatest of all examples of human waste.

Uncounted humans have been swallowed up in the grim world of slavery, a world that still exists today, despite all international efforts to abolish it. Torture, the most terrible and depraved of all human actions, has a long and hideous history. Both physical and mental torture are still widely practiced, and governments are still good at rationalizing it. Prisoners are often kept in the most barbaric of conditions, and justice for the poorest among us is usually harsh. And ordinary people everywhere have groaned under the weight of political systems designed to serve a small handful of power-intoxicated tyrants while treating the lower orders as expendable sub-humans.

The way many of our species’ children have been treated is further cause for a sense of shame and outrage in any decent person. Infanticide has a long and terrible history. Small children have been used for brutally heavy labor throughout human existence. Children have been physically and mentally abused, sexually assaulted, neglected, and abandoned so frequently in the story of our species that most of us turn away from thinking about it, lest we fall into utter despair.

Just as sadly, abuse does not cease after childhood. Interpersonal violence of all kinds has marked human life, as individuals have shown themselves capable of the most terrible cruelty imaginable. Women have often been treated as property and subjected to the most degrading and humiliating treatment, kept ignorant, and generally denied the fullness of the human experience. People have cheated one another in every possible way, have stolen without conscience, have lied to, betrayed, and deceived each other, and ruined each other’s prospects with such regularity that we have come to see these actions as simply part of the fabric of life itself. People in desperate need, who could have easily been helped, have been allowed to starve, go without shelter, die of treatable illness, or wander the streets in madness and squalor, victims of malice and indifference.

Humans have participated in unspeakable horrors based solely on factors such as the victim’s appearance or religious affiliation. Persecutions, riots, pogroms, massacres, and lynchings directed against unpopular minorities among us have been so common that we grow numb reading about them. Even apart from these, there remain prejudice, bigotry, discrimination, and routine injustice of every kind, often backed by the power of law or religious custom.

Countless human tragedies have been brought about by bad judgment, faulty reasoning, incompetence, misinterpreted information, faulty communications, and plain old garden-variety stupidity. Humans have misread, misunderstood, misinterpreted, misremembered, and wrongly estimated virtually everything imaginable. They have sold themselves to every sort of swindle, grasping at wildly illogical hopes. They have fervently embraced ludicrous superstitions and held beliefs so absurd one would have thought no one capable of believing them. They have started terrible fights over simple misunderstandings, broken off personal relationships of great emotional value over trivialities, lost contact with loved ones over old grudges, and generally quite often acted to ruin every chance at personal happiness that came their way. Family members have tormented, abused, and emotionally destroyed each other so frequently that we have come to see these things as “normal” And there are the innumerable small, petty injuries and insults so many people heap upon non-family members in the course of daily life, embittering and eroding the lives of all who must endure them.

Humans have, with appalling frequency, destroyed their own homes, denuded landscapes, fouled bodies of water, made the air stink with choking pollutants, killed off animals on which they relied, and made their environments disaster areas. In some ways, it’s kind of surprising we’re still here, and if we had possessed more advanced weapons during some of the more savage eras of human history, I doubt that we would be.

No wonder the study of humanity has broken so many hearts and caused so many hopes to die. Finding out what our fellow humans are capable of is, in my view, the point at which any childhood innocence that might still remain in us vanishes forever.


VI.

At this juncture, you are probably tempted to interject that humans have frequently, very frequently, acted in ways the exact opposite of those I have just mentioned. You could argue—and you would be right—that humans have shown each other countless acts of love, kindness, mercy, considerateness, compassion, and empathy. You could point to innumerable examples of self-sacrifice, bravery in the face of terrible evil, and a thousand forms of everyday heroism. You could point to the good humor in the face of the world so many have shown. You could argue that the catalogue of human decency overflows with examples—and it does. You could hold up many, many happy families. And you could urge us to consider the glorious crown of human creativity in the arts, as well. All of this needs to be remembered. 

There are also the everyday miracles of forgiveness, reconciliation, repentance, and renewal that occur again and again and again in the course of human life. These small graces are just as real as any of our sins, and they do more to keep the human enterprise going than many of us suspect. In these acts, ties that were severed or damaged are healed, and new lives are made possible. We need to remember that, too.

Further, there has been some progress in the larger course of human life. Children, on the whole, are somewhat better off now than they have ever been, and they are certainly more widely educated than ever. Women have improved their status in many parts of the world and have now reached social equality in some areas. Slavery has been greatly reduced; the more gruesome forms of torture have been made less common; and human rights are more widely respected now than at any time in history. Health care has made huge strides, material wealth has spread very widely (albeit unevenly), political freedom has made genuine gains, scientific and technical knowledge have vastly expanded, and the majority of humanity is reasonably well fed, although many still die of malnutrition and diseases related to it. Humans in all parts of the world have been responsible for these victories, and countless people today experience a dignity they once could not have imagined.

And yet, this progress has been achieved only by the most excruciating and exhausting effort, often at the cost of innumerable lives along the way. We may well ask ourselves: Why has it taken so long to improve things? Why was it so hard for us to get to where we are? Why have the ancient sins persisted so stubbornly? And why have our worst instincts and tendencies so often triumphed over our best ones? Those are good questions to bear in mind, because there are no guarantees that any of our achievements will be lasting.

When I look over the broad course of human history, I see the human species lumbering on through the centuries, gathering new knowledge and acquiring new skills, and yet  still lurching from crisis to crisis, suffering catastrophic setbacks, and often losing ground that was bought at a fearful price. Quite frankly, I see no pattern at all in any of this. I have studied human history for more than 40 years, and I find no great sweeping cycles in it, I find no instance in which history has “repeated itself”, and I find no “scientific” principles that would allow us to make predictions about it. Above all, I see a species that evolved just enough intelligence to survive and flourish in every region of the planet, but not enough to deal with the consequences of its own ignorance, malice, and, in all honesty, delusional thinking. All of our progress is threatened at every moment by these persistent realities.


VII.
So what is the root cause of our extraordinary abilities, our conflicts, our achievements, our confusion, and our inability to understand ourselves and our own motives? The fundamental fact of human history (and prehistory, for that matter) as I see it is that some of the species within the primate order began to evolve consciousness, and in some of the hominids this proved so biologically useful as a survival mechanism that its development accelerated almost exponentially. Humans, therefore, had this amazing capability, one that set them above all other animals. But they didn't realize they had it, and they didn’t know what it was. (And in truth, how could they have?) They didn't realize for countless millennia that what they automatically considered to be reality was actually a version of reality, that the information pouring into their senses was being filtered and organized by the most complex organic phenomenon in the known Universe, our brains. Only now are we beginning to grasp something of the almost frightening complexity of human consciousness. We still have difficulty even defining the term consciousness, much less understanding more than a fraction of its ramifications. 

Our consciousness's complexity and intricacy are the sources of much of our ideology, major components of our psychology, the origin of our faiths (perhaps), our philosophies, what we believe we understand about the world, and much (though not all) of our behavior. Since humans do not fully grasp their own minds, they are less in control of events than they believe they are. I contend that people do not completely understand their own motives. I further contend that this poorly understood and inadequately controlled mental reality accounts for the bizarre, tortuous ways in which human society has developed and in which human history has unfolded. The unbelievable complexity of the human world and the daunting problems we face are exactly what we might have expected from a species whose members are more at the mercy of randomness than they would like to admit, a species whose members are inherently incapable of grasping the wholeness of their own reality, and a species whose members are driven by internal thoughts and instincts that they cannot fully understand.


So as I see it, human social reality at any given moment is the sum total of all the consequences of all the incompletely understood actions of all the humans who have ever acted, combined with the effects, throughout our time on this planet, of the forces, influences, events, and unconscious actions of the natural world. This reality has been shaped in many ways by laws of probability and quantum indeterminacy that are as yet only partially grasped.

Therefore, I see history as the story of how the genus Homo has grappled with the nature of consciousness. We have tended (in general) to assume that we know what we're doing and where we're going.

We don’t.

VIII.

So I wonder if we can hold this moment, the eternal present, in our hands. And I want to know a great many other things as well.

Can we see at least the faint outlines of that which truly is, or can we see only its reflections?

Can we know our origins …

our place …

our future…

ourselves?

Can we understand that all that has been has made all that is now?

Can we hope to know, at least in part, how we have come to be where we are in the story of our time on this planet?

Can we accept cosmic anonymity, irrelevance, and insignificance?

Can we bear the possibility that we are orphans in the Universe?

Can we reconcile ourselves to the life we must live, a life where we cannot be certain, and yet must act?

Since I cannot be you, and you cannot be me, can we ever really know each other’s meaning? 

Even now, at this very instant, are you and I in contact?

Can we look into the infinity of mirrors that is the self contemplating the self, and not be overwhelmed by it?

Is there a self at all, or is there only a continuous stream of feeling and thought?

And finally, can we say that which cannot be said, see what is hidden from our sight, and capture that which recedes inexorably away from us?

We are locked in the cage of humanity until the end of our time. Reality is forever out of our grasp.


And yet, I stretch out my hands anyway. I can do nothing else.