Showing posts with label cultural evolution. Show all posts
Showing posts with label cultural evolution. Show all posts

Friday, October 11, 2024

Gutenberg and Printing: A View from Strasbourg

Strasbourg, France, where I now live, is justly proud of Johannes Gutenberg (about 1406-1468), who invented the printing press. He was born in Mainz, nearby in what is now Germany, and returned to it later, but his crucial first steps in developing the printing press were taken in Strasbourg, where a statue and a plaza commemorate him. I have posted a YouTube video, from Strasbourg, France, about Gutenberg.

One would think that Gutenberg’s idea for a printing press would have been a flash of insight that everyone would have immediately appreciated. But he did his initial work as a sideline and without funding from other people, as far as we know. His main work seems to have been as a goldsmith, polishing gems, and making mirrors. He got his idea for the printing press from another kind of press: the wine-press, which removed juice from grapes. Perhaps if he had just stuck to his polishing and mirrors, or had gone into the wine-press business, he might have had fewer financial setbacks. At least, the return on investment was very slow. His few major investors sued him. But, if Gutenberg had not persisted, the world would not have had what is now widely considered one of its most important inventions.

As a result of the printing press, ideas could now be publicized through a large number of copies, rather than copied by hand or by meticulous engravings that were affordable only for illustrations. Gutenberg developed an alloy of lead, tin, and antimony that could be melted and re-used. The greater number of copies allowed the written ideas to spread more widely and gain a recognition that they would not otherwise have had, or had only after a long delay.

 

 

Some examples of such ideas, themselves changing the course of history, are depicted on panels on the Gutenberg monument. One of them shows the signing of the American Declaration of Independence, with a Gutenberg press squarely and symbolically in the middle of the Continental Congress. Copies of the Declaration then spread around the world, where they stirred the ideas of liberty and democracy more than any handwritten document could have done.

 

Another example is the idea of emancipation of slaves and the end of the institution of slavery. Were it not for the printing press, relatively few people would have been aware of how cruel a system slavery was. Anti-slavery documents stirred the hearts of good people and embarrassed those who owned or profited from slavery. This plaque graphically depicts the cruelty of slavery.

Another example is education. The ideas and works of all kinds of intellectuals, from Descartes to Kant to Mozart to Milton to Newton, might have been lost had it not been for the printing press making their creations widely available. As the plaque shows, it was almost entirely white male creators who benefited from this, but the spread of knowledge was a process which, once started, could not be restrained.

 

Who knows what great ideas might be lost even today because, even if published, go unnoticed. How much worse it would be had there been no way to publish them. This shows the important role that chance plays in evolutionary adaptation (in this case, cultural evolution).

Friday, October 14, 2011

The Evolution of Religion, part two

The following is a continuation of the entry, “religion, evolution of,” from the Revised Edition of my Encyclopedia of Evolution, which will be published online by Facts on File in 2012.

Memes: The Software of Religion

The human brain has a desire to understand and explain things. The above experiences, such as a sense of disembodiment, will create a compulsion to explain them, an empty space just waiting for memes to walk in. One meme told people that there must be something beyond death. Another meme told them that there must be spiritual beings causing everything from the wind to the rising and setting of the sun. Another meme told them that their experiences of disembodiment and the tunnel were actual observations of a spiritual realm. Put these together, and the result is a primordial religion. The only alternative, to a prehistoric person, is to ignore the whole thing. The most successful people were those who figured things out, not those who ignored things. Even if the resulting beliefs were incorrect, so long as they enhanced the survival and reproduction of the believers, natural and sexual selection would favor them.

Human creativity is irrepressible, and it was inevitable that humans would couch their explanations of spiritual experiences in terms of mythological stories that addressed each of the brain phenomena, and that they would develop practices that enhanced the experiences. The stories had gods who made things happen. Religious practices were sometimes accompanied by altered mental states, induced by natural compounds (such as psilocybin in some mushrooms), sensory deprivation (as in a cave), ritual rhythmicity, or particularly vivid dreams. Religion fed on sexual feelings in two ways: adherents experienced sexual feelings both about their deities and about charismatic religious leaders. Religion made humans eager to follow charismatic leaders who claimed to have a connection with the gods. Humans had a desire to understand these overwhelming experiences, and religious memes satisfied this desire.

One of the most important religion memes is guilt. Throughout human prehistory and history, religious leaders have parasitized the human capacity for guilt to reinforce their power over the minds of their followers, and religion has been one of the principal means by which they have done so.

The Evolutionary Advantages of Religion

Religion would probably have been a local aberration in early human populations had it not provided some evolutionary advantage. In modern tribal societies, shamans who claim to have exceptional religious experiences have considerable social power, which can translate into greater resources and reproductive opportunities; no doubt this was also the case during the prehistory of Homo sapiens. David Lewis-Williams points out that this would be the same in the Lascaux cave as in modern charismatic Christianity. Religious leaders would gain the within-population fitness advantage that is necessary for natural selection. Once the trait was established or at least common within a tribe, this tribe would have advantages over tribes that did not possess it—for example, social cohesion and identity that allowed them to prevail in conflicts. Clearly any tribe that had a stronger religion could prevail in war over a tribe with less religious zeal. A tribe of religious zealots could always whip a tribe of religious philosophers. All of the people in the prevailing tribe, and all of the genes in their bodies, would experience a cascade of benefits.

Another possible reason that religious memes have proliferated is the instinct of biophilia. Humans have a natural passion for the beauty of nature, and for its green and flowering and chirping and roaring inhabitants. To pagans, it is the power of the gods and goddesses of earth and forest and ocean. To monotheists, it is the presence of God within the observer. Religion is not the only medium for this feeling, but it is one of them. Biophilia, and religious expressions of it, is an important force in helping people to love the places that are hard to live in, and has probably helped numerous individuals and tribes to persist through unspeakable hardships.
Although all Homo sapiens groups have religion, there was a striking development of religion when Homo sapiens encountered Homo neanderthalensis in Europe, and later when the most recent ice age forced Northern European tribes southward where they encountered disturbingly intelligent people that already lived in Southern Europe. Religion then functioned in tribal identity. Evidence for the tribal identity function is that there were geographical differences in types and styles of artwork—for example, different caves specialized on different animals, reflecting differences in established traditions.

There have been many different attempted explanations of the Cro-Magnon cave paintings. Some anthropologists say that the paintings were sympathetic magic to promote successful hunting. However, as David Lewis-Williams points out, the set of animals in the paintings is not the same as the animals that the people ate (for example, they did not eat bears and lions), and only 15 percent of the paintings show animals with spears. The paintings resemble animal visions that people might have seen during hallucinations. The animal paintings are often accompanied by geometric symbols that resemble the images seen during migraines. The animal images are not in their natural habitats, and appear to be floating, and sometimes lack hooves.
To the Cro-Magnon, as to many recent tribal peoples, the wall of a cave may have represented an interface between the outer world and the underworld. When the prehistoric people entered a cave, they were literally entering the underworld. In the darkness they would hallucinate from sensory deprivation, and possibly also from the high levels of carbon dioxide. Then when the lamps were lit, they would paint the images they had seen. Sometimes the artists would also paint their hands, leaving either positive or negative images of them, as a mark of direct contact with the underworld. Hand contact with the wall, and the process of spit-painting, were part of the overall religious experience. The visionary quality of the paintings is particularly evident in the deepest recesses of the caves, some as much as a kilometer underground, where quick sketches of many animals overlapped.

In addition to the individual religious experience, there was also a communal aspect. Religious shamans could gain admiration from their followers by taking them deep into the caves to see the evidence of their religious experiences. Meanwhile, the shallower reaches of the cave served as the assembly rooms for the general population, and it is in such places that the large, vivid images are found. The cave paintings may therefore have served to increase the social status and the fitness of religious leaders.

With the advent of civilization, religion was usually dominated by priests and kings and used as a way of controlling people. The power structure that provided an advantage of some people over others in a society could also allow one city-state to dominate another. This role of religion continues to this day. At the same time, there has been a parallel lineage of prophets who criticize social norms. In ancient Israel, for example, practically all the prophets were outcasts who lived in huts and caves and were sorely hated by the priests and kings. Governments still use religion as a tool of domination in some countries. In the United States, there are many large religious organizations that obtain a great deal of monetary and other kinds of support from their adherents, and these organizations have great influence on national and local politics. Religion is at least as much a tool of power and fitness opportunities as it was at the time of the Cro-Magnons.

Even though religion is not a single adaptation, its memes are closely enough tied together that they will probably all be with the human species as long as it exists. With a rush of Enlightenment optimism, Thomas Jefferson said in the early 19th century, “There is no young man alive today who will not die a Unitarian.” Evidently he was wrong.

Friday, October 7, 2011

Evolution of religion, part one.

The following entries are from the Revised Edition of the Encyclopedia of Evolution, which will be published online by Facts on File in 2012. I have taken them from the entry, “religion, evolution of.”

Homo sapiens is a religious species. This is one of the few behavioral universals of the human species. Though there is individual variation in the strength of this trait, no society is without it; those that tried to eliminate it have failed. Religion appears to be ineradicable. There is clearly no biological basis for particular religions, but it is likely that there is a biological basis for the capacity for religion.

Neandertals apparently did not have religion. The contrast between the religious artifacts of Homo sapiens and their absence in Homo neanderthalensis in their regions of overlap could hardly be greater. While Homo sapiens had intricate burials (a burial of two children in Sungir, Russia, contained 10,000 shell beads each of which took from one to three person hours to prepare), Neandertals apparently dug the shallowest possible graves to keep the body from stinking. The Shanidar burial of a Neandertal with flowers, even if it is confirmed, is a rare and isolated instance. Neandertal pendants associated with the Châtelperronian culture have been mostly dismissed as imitative of the Aurignacian culture of the Cro-Magnon, and even if they were not, their connection with religion is unclear. Neandertal caves totally lack the wall art that abundantly and resplendently represents Cro-Magnon religious experience. Anthropologist David Lewis-Williams calls Neandertals “congenital atheists.” Yet Neandertals had brains at least as large as those of modern humans. Other groups of H. sapiens, all over the world, had a similar abundance of religious practice.

What is Religion?

Religion is not a single thing; it is a set of memes that have taken up residence in human minds. These memes use human minds, words, and actions as a way of propagating themselves. The human brain is the hardware, and religious memes the software. Many scientists have reified these memes and the physical attributes that they use into a single concept. Therefore when scientists say that religion is universal among humans, they mean that every human has the mental components that can or do harbor and propagate religious memes, and that some of those memes can be found in every culture and every individual. They cannot say that natural selection has or has not favored religion as a whole. Natural and sexual selection clearly controlled the origin of the brain processes of which the religion memes make use. Social evolution has promoted religion in most cultures at most times, often to the benefit of powerful individuals who use it to dominate others.

The Brain: The Hardware of Religion

Human brains increased in size over evolutionary time for numerous reasons, including the mastery of technology, sexual selection, and social interactions. Religion probably had nothing at all to do with it the evolution of intelligence. But as the brain increased in size, it was not just the parts of the brain that conferred social and technological skills that increased; the whole brain increased in size, including the parts associated with the following capacities:

• Sexual ecstasy. Humans have a highly-developed capacity to experience sexual ecstasy. Religion, like orgasm, can create a feeling of transcendence (ex- means out of, stasis means place).
• Loss of the awareness of having a defined body. The sensation of having a defined body is something that the brain creates. Some kinds of strokes cause their victims to experience reality as a stream of sensations, without an awareness of embodiment. In ancient times, some people may have experienced head traumas, oxygen deprivation, starvation, or dehydration, which opened them up to a disembodied sensation, or they may have induced these feelings by meditation. This is one of the elements of religious experience, commonly reported by people who have a well-developed ability to meditate.
• Altruism. Altruism is one of the most pervasive human characteristics, and one for which religion clearly provides an outlet. One of the principal components of altruism is guilt, which reinforces the likelihood that people will act altruistically.
• The need for an authority figure. Humans appear to have a psychological need for an authority figure whose goodness they do not question. In adults, this may be a vestige of a child’s worship of parents.
• Awareness of death. Natural selection favored the evolution of intelligence, and one of the side-effects of intelligence is the ability of a person to understand that he or she will die, and the possibility that he or she will be preoccupied by it.
• Agency. Very young children do not display feelings or awareness that can easily be described as religion. They do, however, always have the capacity for agency attribution. When something happens, they think that someone has caused it to happen. The wind blows because someone makes the wind blow. If they experience pain, it is because someone is hurting them.

Religion makes use of all of these brain elements. Specific areas and functions of the brain have been implicated in the mystical, religious experience. Neurologists Andrew Newberg and Eugene d’Aquili have been particularly active in researching the brain activities associated with religion. They point out, for example, that when humans enter an altered state of consciousness, the orientation association area of the brain (which in the left lobe is associated with the sensation of having a limited body, and in the right lobe with the sense of space that a person occupies) contribute to out-of-body experiences.

Religion is not pathological, but brain pathologies can help scientists to understand its neurological basis. Stimulation of the right temporal lobe by electrodes (or pathological stimulation by epilepsy) produces experiences closely paralleling the near-death experience of passing through a tunnel towards the light. Similar effects are also produced by the drug ketamine.

Announcement: On my other blog I begin an October series about the dinosaur footprints in the bed of the Paluxy River in Texas. On my YouTube channel, Darwin visits these dinosaur footprints.