9: Evolutionary Psychology
We’ve made enough jumps between biology, chemistry, and physics, at enough strategic points now, that we can say we have a functional outline of a chemical formula for the global environment. Any time any biological process happens, it happens as a result of genes replicating themselves, it happens in a stable chemical reaction of all the genes in the world interacting with each other and replicating themselves, matter and energy always move from areas of high concentration to areas of low concentration more than they move from areas of low concentration to areas of high concentration, energy is always added to the global environment at a constant rate, and keeping the chemical reaction of the global environment stable—meaning sustainable—depends on not making energy leave the global environment faster than it’s added.
Now we can write a chemical formula for an elephant, and for the entire global environment. Now the question is: How do you write a chemical formula for Romeo and Juliet?
What I mean by that is, how do you make the jump from biology to psychology? Neurologists can study the ways chemicals and electricity flow through people’s brains, and those chemicals are products of biology. You could write a chemical formula for a person’s brain. But once again, that chemical formula would be so complicated it wouldn’t be useful to anyone. So how do you break psychology down into units that are of manageable size, that encompass the entire realm of human behavior?
This has been another big puzzle scientists have been grappling with for decades.
Dr. E. O. Wilson founded the field of what he called sociobiology in the early ‘80s. Later, Dr. Leda Cosmides and Dr. John Tooby adapted it a little and called it evolutionary psychology. In 1987, Dr. Ervin Laszlo founded the Club of Budapest, which was an international group of scientists like the Club of Rome, who met in Budapest to study how evolutionary psychology was affecting humanity on a global scale. How the Mind Works, by Dr. Steven Pinker, is a very long, and very thorough introductory book to evolutionary psychology.
I’ve told you that our genes created our brains. The study of evolutionary psychology is the study of how our genes created our brains. Specifically, why our species evolved the way it did, and how our brains evolved as a result.
I’ve told you how Dr. Dawkins discovered with his Selfish Gene Theory that all animal behavior helps the individual animals survive or reproduce in some way or another, and how the animals’ genes created their brains to make doing those things seem like the best ideas to the animals.
When Dr. Wilson applied the Selfish Gene Theory to human behavior, he discovered the first principle of evolutionary psychology: All human behavior is the product of the attempt by the individual to preserve the survival of his or her DNA (or genes) by the most effective means perceivable to him or her.
With this discovery, he assembled all the edge pieces of another jigsaw puzzle. Now we can see that any time we talk about human behavior, we’re talking about people attempting to preserve the survival of their DNA by the most effective means perceivable to them.
Unfortunately, that’s hard for a lot of people to understand, because that seems to imply that people perceive the existence of their DNA, which they don’t naturally. That isn’t what it says, but that’s how most people interpret it.
My grandmother was no scientist, but she was a philosopher. She figured out most of what Dr. Wilson figured out, in simpler terms, long before:
Everyone always does the best they can to try to provide for their needs.
The one thing she didn’t figure out was that people’s needs always relate to survival and reproduction in one way or another.
At this point people always ask, “But what about Hitler?” “What about President Bush?”
If you’re doing that, you’re projecting your own perceptions onto the other person and expecting them to share them—which they don’t.
At the moment anyone makes any decision, they always believe it’s the best decision they can make under their circumstances. On the most fundamental level, they believe that what they’re doing is right, even if in a lot of ways they feel that what they’re doing is wrong.
When a person does the best they can to try to provide for their needs, their ability to do that is limited by their perception of their needs, their perception of how their needs can be provided for, and their perception of their capability to provide for their needs.
If you were born with a silver spoon in your mouth and you believe in a lot of religious superstitions that say that wealthy White heterosexual Christian men are smarter than everyone else and know what’s best for everyone, you don’t grow up to be a very worldly person. You can get elected president that way, but that doesn’t prove you know very much about how the world actually works. If you grow up a spoiled brat and then figure out how to get hold of our entire federal government, what else are you going do with it but treat it like a new toy?
If you’re also a religious fundamentalist, that’s even worse. Now you’re a spoiled brat who’s head of the government of the most powerful country on Earth, who’s deathly afraid of Pagans, Atheists, Muslims, homosexuals, feminists, environmentalists, Native Americans, Socialists, Communists, Anarchists, and every other minority in America, and who looks down on all those people, assuming they’re inferior to yourself. Then you act accordingly.
People act upon their perceptions to try to survive and reproduce in whatever way seems best to them. Most of that process has already been figured out by other people. The one big piece that’s missing is how people’s perceptions work.
Evolutionary psychologists have discovered a lot of important things, like the origins of agriculture and religions, like I told you about already, also the origins of things like cultures, gender differences, violence, morality, and art. I talk about all of these things in various places in my other books—especially the long version—so I won’t bother going into them all here.
One of the most important things evolutionary psychologists have discovered is that we don’t live in the conditions our brains evolved in. Our brains, like any other part of any other animal, are very highly adapted to deal with life in the conditions we evolved in. But paradoxically, our having this particular body part led us to remove ourselves from the conditions of our evolution.
Soon after the evolution of human intellect 60,000 years ago, our brains stopped evolving. They had evolved genetically to the point that they made genetic evolution obsolete. Evolution is the cumulative adaptation to environmental pressures. But now whenever something in our environment changes, we don’t have to wait around for generations for our genes—and consequently, our brains—to evolve to deal with the new living conditions. Human intellect has given us the ability to learn about our new living conditions personally and adapt our own behavior. But things we learn now don’t get imprinted in our genes.
Now we live in the space age, but we still have brains that evolved in the stone age. The people who lived in the stone age—as some people in the world still do—were people just like us. We got from the stone age to the space age by adding ideas together, generation after generation. The people who lived 40,000 years ago had all the intelligence they needed to build the space shuttle. The only reason they couldn’t do it was because they hadn’t figured out how.
Even if it wasn’t for our ability to adapt to living in a new environment faster by learning than by genetic evolution, we still couldn’t evolve genetically to fit our changing environments. Evolution happens slowly for any species, because genetic mutations are very rare. On top of that, evolution happens because of mutations or new combinations of genes being passed down from generation to generation. Our generations are spaced about 20 years apart or so, which makes us the slowest evolving species in the world. Many plants and animals have a generation cycle of one year, and they still take thousands of generations to adapt to changes in their environments. We developed agriculture about 500 generations ago.
After the evolution of human intellect, we still evolved a little bit to make our new intellect work better. But that was long before the development of agriculture.
Since the development of agriculture, our living conditions have been changing too quickly for evolution to keep up with. We can’t talk about the presence of agriculture versus the absence of agriculture as a change in our living conditions, because the age of agriculture encompasses everything from the first stone age farmers up to the biotech industry. The Old Testament was written about 250 generations ago. Jesus lived about 100 generations ago. Columbus discovered America about 25 generations ago. The United States was founded about 10 generations ago. Airplanes were invented about 5 generations ago. So think of how much our living conditions have changed in between each of those events, and then think of how many thousands of generations didn’t happen between those events, and you’ll get a sense of how much genetic evolution hasn’t taken place to adapt us genetically to our changing environment.
As I’ve said, human intellect gave humans the ability to out-smart every other species in the world. Humans could change their hunting tactics faster than any other species could evolve defenses against them.
In Mesopotamia there were a lot of gazelles. The people who settled there over hunted them and depleted the herds. If the people were any other species, when they ran out of food, a lot of them would’ve died. But they didn’t. With their intellects, once again they did something no other animals could do.
The Mesopotamians were also gathering edible plants and bringing them back to their villages. When they started running out of animals to hunt, they had to gather more plants. Eventually they figured out the connection between throwing their food scraps away and edible plants growing out of their refuse dumps. So they learned how to farm.
When people learned how to farm, they completely changed their relationship to the environment. Now instead of being controlled by the food production of the environment, they began controlling the food production of the environment. They didn’t realize what was going to happen as a result of what they were doing, they were just doing their best to try to provide for their needs. They’d figured out a new way to get food that worked better than any other way they had.
People’s instincts evolved to deal with life in the conditions of our evolution. People’s instincts create their emotions. Their emotions give them a big part of their perceptions.
Now that the people had removed themselves from the conditions their brains evolved to deal with, their perceptions of the world began to be thrown off. They still perceived the world the way their ancestors did, but now that they had removed themselves from the conditions of their evolution without realizing it, a lot of things they perceived to be true about the world weren’t true anymore. Now when people acted upon their emotional instincts, their behavior didn’t fit very well to their living conditions.
A lot of times when people acted upon their emotional instincts they ended up acting against their own interests. If you’ve ever gotten angry and punched, kicked, or thrown some possession of yours and broken it, you’ve acted against your own interests—but it seemed like the best idea to you at the time. Some people murder their wives, their best friends, and their children before they realize what they’re doing. Things like this created a lot of problems in early agricultural societies, and no one knew why.
The first group of people in the world to develop agriculture was also the first group of people in the world to develop writing. But it took them 5,000 more years to develop writing. By the time people first figured out how to keep written records of their history, their own ancestors’ development of agriculture was long gone from their cultural memory. So they didn’t write it down.
Instead, they wrote the Old Testament, with the Book of Genesis and the myth of Adam and Eve. They had no idea their ancestors had evolved in Africa, and then over hunted the gazelle herds of Mesopotamia, so they tried inventing a history for themselves.
Now that lots of people were living together in permanent settlements, but were still motivated by mysterious emotional instincts that caused lots of problems in their groups when people acted upon their immediate feelings, they tried to figure out where those feelings came from, and how to solve the problem.
Violence was one example. In every species of large mammal, males compete against each other with violence to mate with females, which helps the strongest and healthiest genes get passed down to the next generation. Violence worked pretty well for people back when they lived in small groups and caught most of their food by hunting animals with spears, because living that way required a whole lot of violence, most of which was directed at their prey. But for men competing against other men it didn’t work so well anymore. In every other species of large animal, males rarely fight each other to the death over mates. But now that humans had used their intelligence to figure out how to build better weapons, they could fight each other to the death— or, more likely, use their intelligence and their weapons together to plot against each other and murder each other.
From duels to the death and murder, it’s easy for more people to get involved, use weapons, and plot against each other. Then violence escalates into war. Humans are the only species of animals that have invented war, for the specific goal of killing each other as efficiently as possible.
(…Or so it seemed for a long time. If you read Dr. Paul Erlich’s book Human Natures, he tells about a group of chimpanzees some biologists discovered in Africa who had invented war. If anything, that’s even worse, because that makes war just one more thing we have in common with chimpanzees.)
With these social problems in the first agricultural civilization, and many more like them, for people to make their agrarian societies function instead of self-destructing depended on getting people to cooperate with each other. That depended on getting them to not act upon their immediate feelings. The oldest and wisest members of the group understood that violence leads to war, and that other small problems led to big problems in the future. Those problems were big threats to people’s survival and reproduction.
So the oldest and wisest members of the group figured out the idea of morality. If they taught the other members of the group to feel that acting upon their immediate feelings was bad, and acting in the way people needed to act to prevent the group from self-destructing was good, that solved a lot of problems.
Every group of people in the world had already discovered the concept of morality. But the first Mesopotamian farmers had left the living conditions their brains evolved in behind. That meant the Mesopotamians were having more internal problems than anyone else now, which meant they needed more morality to solve them. So they invented the idea of a force of pure good, which people were supposed to follow, and a force of pure evil, which was the source of temptation that led people to act in ways that would destroy their groups. The threat of eternal paradise or eternal suffering and damnation, were, in effect, metaphors for what the oldest and wisest people had learned the hard way, that made those lessons personally meaningful and easier to remember for the younger people.
Today, and especially in America, we have 5,000 years of recorded history, most of which was written by Christians and Jews. They’ve made all kinds of faulty assumptions, like that humans were inherently good and were only tempted to commit evil, that they were the only people who had discovered morality, and the fact that they conquered the world proved they were better than everyone else.









