After living for so many years, I have wondered like many people. Since Darwin’s theory of evolution is true, are we still evolving? Technology has been so developed, why are human beings still so disappointing, worrying about the appendix, wisdom teeth, myopia, allergies, inflammation, uterus and other minor physical problems of the mortal body?
In fact, we are evolving every minute, but this change is too slow, like an ant crawling from Beijing to Buenos Aires, we don’t notice it.
A study by the genetics group of the University of Chicago found that humans have about 250 positive selection genes (genes that can effectively adapt to the environment when a species is affected by the external environment), and 9% of human genes are undergoing rapid evolution, which shows that the human body Still being updated. Although we don’t have a long enough lifespan to see the cool evolution of human beings, we can still boldly imagine what future generations will become.
British evolutionary theorist Oliver Currie believes that by 3000 AD, that is, 1000 years later, human beings will have evolved into a “golden age” of physiological structure, as perfect as Greek sculptures: the average height is 1.95 meters, and the age can reach 120 years . Men have well-proportioned features, deep noises, and stallion-like genitals, while women have big eyes, glossy hair, smooth skin, and vibrant breasts, and each has a sexy god-like body.
But after the golden period, everything seems to be developing in a strange direction…
2 meters tall
Human height has been increasing rapidly over the past two centuries. British osteopath Gary Train predicted that due to the continuous improvement of human nutrition and medical science, in 1000 years, everyone’s height will be between 1.82 meters and 2.13 meters. Today, the average American is 2.54 centimeters taller than it was in 1960, and the average national in industrial countries has grown by 10 centimeters in the past 150 years. Humans will grow taller in the future.
The ozone layer may disappear in the future, and too strong solar radiation may cause the skin to sag and wrinkle.
1,000 years ago, if you were congenitally diabetic, or if you had a misaligned wisdom tooth, you might have died with a bang, but not now. Now the development of our human medical technology has interfered with natural selection.
However, if we rely too much on medicine, the human immune system will become weaker and weaker, and the ability to resist diseases will become weaker and weaker. Moreover, since future medical technology will definitely be able to cure cancer, but these cancer-causing genes will be inherited and become more and more common, becoming a fixed part of the human gene pool, and cancer may become as common as a cold.
In the future society, heavy work, dirty work, and tiring work can all be handed over to machines. Because of our dependence on technology and machinery, the physical exertion necessary for human survival will become less and less, and the muscles will gradually weaken.
In the future, human beings will definitely travel in time and space and interstellar travel, or directly move to space to live. Due to the loss of gravity, our muscle strength will gradually lose, and everyone will become weak people or meatballs with no brains. .
Limbs grow longer
Another guess is that in the future, human arms and fingers will become longer and look like gibbons, so that it can be more convenient to reach distant objects.
With the wider application of intelligent interactive devices, the nerve endings of human palms and fingers will become more sensitive, and the body will evolve more complex advanced functions of “eye-hand interaction and cooperation”.
In the evolution from apes to humans, we have lost most of our body hair, and humans no longer need to live outdoors for a long time. After the invention of high-tech thermal insulation clothing and intelligent air-conditioning systems, the body does not need to work hard to keep the temperature automatically. Hair The meaning of existence is only to attract a partner. It is very likely that in the future, human beings will accelerate baldness and become barren, and by that time, it may be that baldness is considered beautiful.
Big head family
The current trend is that as humans develop, the fetal head will become larger and larger.
From 1 million years ago to 100 years ago, women with narrow pelvis and fetuses with too large head would both die due to dystocia, women with large pelvis survived, and their genes remained, and those with small pelvis There are fewer and fewer women, completing a characteristic evolution cycle, which may last hundreds of thousands of years or even longer. Men naturally like female partners with big breasts and fat buttocks, which is a natural evolution of butt changing history.
But modern medicine has broken this evolution. Caesarean section and biopharmaceuticals have allowed various genes that should have been eliminated to pass on. According to birth data in the past 50 years, the global rate of cephalopelvic disproportion has increased from 3% of newborns in the 1960s to 3.3% of newborns today, with a growth rate of 10%-20%.
Because more and more births use caesarean sections, these children carrying the big head gene are more likely to have a big head when they grow up, and the big head gene is left behind, and then the baby’s head is getting bigger and bigger, so it is more likely Tend to caesarean section, so a cycle: big head→caesarean section→big head→caesarean section…while the birth canal and pelvis remain unchanged. Perhaps one day in the end, human beings may not be able to give birth at all, and can only adopt caesarean section.
Deformation of facial features
Because human eyes often stare at various screens, they will grow more eye lines, larger eyes, and loose eyelids. Cooper, a professor at Lancaster University in the United Kingdom, predicts that human eyes will become larger and their language functions will degenerate. In the future, they will mainly communicate through expressions, eyes and screens. When we colonize aliens, our eyes may evolve to blink sideways to protect them from cosmic rays.
Moreover, humans no longer need to live in the wild for a long time, and we have fully adapted to the air-conditioning system. The impact of climate on humans is getting smaller and smaller, so everyone in the future society will have the same shape of the nose.
The Russian media “Facts and Arguments” believes that human hearing ability will continue to strengthen, and the shape of the ear will gradually change, and it may be able to open and close like animals.
As the food becomes softer and finer, the teeth no longer have to chew and tear the food as hard, and there will be fewer teeth. Evidence suggests that the size of our teeth has halved in the past 100,000 years, and there is no reason why humans still need huge teeth, so the mouth will shrink accordingly. In the future, we will even be able to obtain essential nutrients through liquids or tablets, without chewing hard objects, so our jaws gradually shrink until they disappear.
In the future, humans will evolve into three-toed/four-toed animals.
Before humans walked upright, our toes were used for grasping and clinging. Back then our toes were long and functioned and dexterously like our hands. It wasn’t until humans stood up and stopped crawling that the toes slowly shrank to their current size. Of the five toes, we need the big toe the most. It helps us balance. We actually don’t use the little toe anymore. You only realize it when you get worn out by your shoes or hit by the foot of a table. The presence.
British dentist Dr. Philip Steiner believes that in the future, human intestines will become shorter to avoid absorbing too much fat and sugar, which will allow humans to avoid obesity.
The size of the human brain has been changing. Compared with Homo sapiens about 2 million years ago, the human brain has doubled in size, and compared with the Australopithecus 4 million years ago, the human brain has tripled in size. .
But a recent study suggests that our brains are stretched to the limit. The human brain has gradually shrunk over the past 20,000 years, all over the world, regardless of race or gender. The average human brain volume has dropped from 1500 milliliters to 1350 milliliters, which is equivalent to reducing a tennis ball.
Science and technology will also affect the way we remember, especially in the Internet age, when all information can be found on search engines, we no longer need to remember so much information, we only need to make judgments about the information.
Chris Stringer, an expert at the British Museum of Natural History, predicts that humans will have smaller brains in 1,000 years, possibly because too much memory and thinking work has been replaced by computers. Some people also infer that it is because of the emergence of advanced society that the brain becomes smaller, because people no longer need a high IQ to survive. Originally, some individuals could not survive on their own intelligence, but with the support of the social security system, They can also get by.
In the future, globalization will further accelerate, human races will be greatly integrated, and more mixed races will appear, until we all give birth to children of the same skin color, and all ethnic groups in the world will evolve into a single, ubiquitous hybrid family. At that time, racial differences will be history, and “race” will no longer be an issue. There will be an unprecedented harmonious society on the earth, and the political and economic development of mankind will also make a qualitative leap, and the world will be realized.
However, a single race is also more vulnerable to the threat of infectious diseases, drastic changes in the environment, industrial pollution… Once the adaptability of human beings is exceeded, they may suffer catastrophe. Just like super rice, although the variety is excellent, it is also susceptible to diseases. People who survived a global catastrophe would have evolved traits to adapt to a particular environment, such as immunity to viruses, or skin radiation protection, and so on.
If different groups of people were separated in different places for thousands of generations, the survivors of both groups would follow their own evolutionary paths, resulting in different races.
The 1895 science fiction novel “The Time Machine” tells such a terrible story: an extraterrestrial disaster befalls the earth, destroying most of the brilliant civilization built by mankind, and the surviving humans evolved into two races — cruel underground Cannibals and ground civilized races. Because the civilized races on the ground live too well, their physical strength and wisdom have shrunk and become beautiful waste products, so the underground races raise the ground races in captivity and use them as food.
To put it simply, parents can select the characteristics of their children before birth and remove all defects in their genes. The modified “genetic people” will far exceed ordinary people in terms of learning, work, courtship and life expectancy. Social observer Joel Gallo said in “Radical Evolution” that it only takes 20 years for a genetic person to be born. Now we know that day has come.
In the future, social hierarchy will be based on genes. Humans will be integrated with machines. Genetic people are noble, while natural people are lowly, and even become an endangered species. But to create genetically human beings, technical and ethical barriers need to be overcome.
Either by cloning organs, transforming ourselves into a new generation of human-machines, or uploading our consciousness to the cloud, each of us can achieve a sense of immortality.