There are many factors that cause population growth rate. The first reason is the growth of life expectancy.

In areas with better medical environment, the average life expectancy is as high as 160 years old. Note that the average life expectancy is, some of them are particularly well maintained, and even live to 238 years old!

In such a high life span, who would be willing to stay with a partner for a lifetime?

The humanistic environment of the entire civilization is gradually changing because of the growth of life span.

After all, human beings are creatures who are fond of the new and tired of the old. In the past, they were "to accompany each other for fifty or sixty years, and now they are 150 or sixty years!

Human beings will remain in the state of young and middle-aged people for a long time. Most people would rather have enough fun first than start a family safely and have children...

In this way, the marriage rate is sluggish and the population birth rate will naturally decrease.

Second, it is the cost of cultivating talents. The cutting-edge space industry has increasingly demanded population quality. But in just a few hundred years, human intelligence will not make rapid progress.

Cultivating high-quality talents may require consuming most of the savings of a family.

Therefore, for most families, having one is enough.

"Many young people don't like getting married, and they don't like having children. Maintaining DINKs can greatly improve the quality of life. For these young people, it is difficult enough to support themselves. Where can we consider the entire national security?"

"On the contrary, some poor countries have higher birth rates... Even if distance online education is popularized, there are still fewer chances of high-quality talents under the influence of specific environments."

Looking at this report, Zhang Yuan was slightly worried.

The trap of aging, an extremely terrifying crisis.

The more elderly people, the heavier the social burden on young people will be.

The heavier the burden on young people and the worse their economic conditions are, the less willing they are to have children.

This is a vicious cycle, and it is very difficult to jump out of it. Even if the government introduces various policies to encourage childbirth, it often does not have a good effect...

History has proved that the best way to cure aging is war!

Yes, the reshuffle brought by war can bring about the peak of fertility, and this view has been proven many times by history.

But the current trend of the whole world is peaceful development, and it is unlikely that a war will occur.

Moreover, as a normal person, Zhang Yuan does not want to use the world war to solve the problem of aging, which is simply putting the cart before the horse.

He shook his head, threw these random thoughts behind him, and continued to analyze the data.

[Under the influence of this trend of thought, the population of Bangguo has dropped from the original 51 million to 15 million, and it will be the first country that will perish due to aging.]

"Oh, human, pill!" The sentimental John watched and began to sigh again.

"The growth of lifespan has become the best contraceptive pill. The garbage population in poor countries is increasing, and they generally rely on the relief of wealthy countries to live. I really don't know what it is for these people."

After a dispute broke out, Zhang Yuan was not very good at it. He gritted his teeth and retorted: "At least the poor country is also a place for raw materials production, and it still has some effect. Without poverty, where can we get wealth? As long as it is productivity, even if it is a little lower, how can it be useless!"

"In your eyes, everything is pill anyway."

John was stunned: "Indeed, the development of earth civilization requires low-end populations...it is impossible that all of them are high-quality populations. The distribution of population, no matter which era, must be pyramid-shaped."

Zhang Yuan shook his head: "Actually, overall, the earth's civilization is still moving forward, right? As for the population problem, I believe it can still be solved. Every era has its problems, and it cannot be smooth sailing."

"I don't really believe that humans will really perish because of the problem of aging."

John replied: "Zhang Yuan, you are too optimistic. So far, humans have used greedy strategies. Only when a problem arises will they find a way to solve it instead of preventing it before it happens."

"This kind of decision-making system is unscientific in itself and is likely to enter the trap of mediocrity. Aging is already a big problem."

Zhang Yuan actually knew this, but he still had a natural sense of expectation for his mother civilization.

In this case, he didn't want to debate too much with John, just keep reading the report below.

In order to cope with a series of problems caused by the stolen population growth, government departments are constantly encouraging childbirth and introducing relevant policies.

This population policy does not last for decades and will basically not have much effect, so he skipped the thirty years of development and came to the latest report.

When he saw the first few lines of words, his spirit was shocked.

"Hello, dear colleagues from Earth Age! I am the new president of the Deep Space Foundation, Yuan Yuchan, I will bring you the latest information on Earth civilization."

The new foundation president has become a middle-aged woman, but that's nothing.

"In recent years, the best scientific and technological achievements have appeared in biology, mainly the deciphering of protein languages ​​and the emergence of artificial uterine technology!"

"…The deciphering of protein language has brought about qualitative changes in life sciences!"

"We have overcome a large number of diseases, including the 'king of cancer' pancreatic cancer and various malignant diseases..."

“It is no longer a luxury to overcome the drug resistance of super bacteria!”

Great good news!

Seeing this, Zhang Yuan couldn't help but sit in his seat and smiled.

Below are a lot of papers on protein language, involving all aspects of biology.

However, Zhang Yuan did not know much about biology, so he had no way to comment.

He only knows that the deciphering work of protein language is bound to be extremely important. Humans can deeply understand the essence of life from the most microscopic level.

To give a simple example, in terms of the immune system, HIV has abandoned evil and followed good, which can help treat immune deficiency. Some people with innate immune deficiency can now be cured. This medical method was just a fantasy in the past!

"The average life expectancy is going to increase again. I wonder if it will affect the marriage rate." Zhang Yuan asked with interest: "Have our biologists studied these new drugs?"

"We are studying it." John turned his head and said, "Our current equipment is too poor. We can't make such a drug that can increase lifespan for the time being... In the next big year, there will be a meeting in life sciences, but it's not our turn to attend. We are not biologists."

"Okay." Zhang Yuan shook his head. Anyway, he was still young and didn't have to think too much about lifespan.
Chapter completed!