It had been five years since aliens appeared on Earth.
Most of the people living on Earth did not know what had happened back then. The aircraft from outer space had mysteriously appeared and disappeared.
After confirming their safety, the Earth's elites returned to society from the frozen Arctic and Antarctic bases as if nothing had happened.
The only change that brought to Earth back then was that the treatment of practitioners in astronomy, physics, mathematics, and other fields had increased a lot. The governments of various countries had unanimously shifted their financial budget to the development of aerospace technology.
Earth welcomed a period of rapid technological development.
......
"The development of our human technology seems to be flourishing, and the level of technology seems to be advancing by leaps and bounds!“
" In fact, we are very fragile. Our technology is like a bubble that has been blown up!”
"Sixty years ago, we set foot on the moon, but today, we are still celebrating the arrival of our probe on the dark side of the moon!”
" In the past thirty years, we haven't made any breakthrough in the field of major scientific research!”
Tang Rui took a sip of tea and watched the live broadcast of the probe landing on the moon on TV. He said to his student, Wang Jingyun.
Wang Jingyun didn't know if it was his imagination, but he felt that his teacher was a little sympathetic today.
Wang Jingyun had always respected his teacher.
Putting aside the teacher-student relationship, Wang Jingyun had always admired Tang Rui's profound attainments in physics and language.
"It's true that we don't pay attention to the development of science and technology!”
" But human technology has always been advancing," Wang Jingyun said." The lack of significant development in the past 30 years may be due to accidental factors.”
Tang Rui sighed softly!
An incomprehensible look flashed across his eyes!
Perhaps it was sadness, or perhaps it was anticipation.
He stood up and walked to the window.
As he was too old, his steps were a little unsteady. Wang Jingyun quickly stood up and helped the teacher.
The old man kept staring at everything outside the window, as if he was reluctant to part with everything he saw.
"Teacher, it's already eleven o'clock. Let me send you back!”
Wang Jingyun said in a low voice.
"Jingyun, I have something to tell you." Tang Rui shook his head.”
Wang Jingyun was stunned. He felt that his teacher was different from usual.
"The civilization of mankind naively believes that we are the masters of Earth, but the truth is cruel! In our novels, we even naively think that we are the masters of the entire universe!”
"On Earth, the tallest mountain is Mount Everest, which is 8848 meters tall. However, the radius of Earth is more than 6,000 kilometers. To Earth, Mount Everest and the Mariana Trench are just a speck of dust on its body!”
"The goal of us humans is to conquer these things!”
"Do we understand Earth?"
Seeing Wang Jingyun slowly shake her head, Tang Rui's eyes seemed to be mocking.
"We can't even fully understand the earth, so how can we protect the earth!“
"Earth, why do we need to protect it!”
" His self-recovery ability is very strong. Once upon a time, tens of thousands of years ago, a civilization that might have existed on our Earth went extinct! Then, we humans were born!”
"We are very laughable! Our entire human civilization, all of us, all of the cities, everything that we can see!”
"They are all very laughable!"
"If we don't pay attention to the development of science and technology! Everything in front of us will just be a fleeting cloud one day!”
"Everything in front of us! Compared to the sun, it was nothing!”
Tang Rui's words revealed a deep sadness!
"Our human technology is indeed very small now, but we only need time! One day…"
Wang Jingyun said in a low voice. He felt that his teacher was probably muddle-headed when he talked about the civilization from tens of thousands of years ago!
"Is that so?" Tang Rui's gaze was a little erratic!
"We don't have time!" the old man said in a low voice.
Wang Jingyun understood what his teacher meant. He was explaining a theory-the Earth Explosion Theory!
Professor Tang Rui had organized a research project four years ago. The topic was-how many people could the Earth carry?
The final conclusion was that the Earth's maximum carrying capacity was 9 to 10 billion people!
Putting aside the problem of energy depletion, other than the limited amount of fresh water, there was also a limit to the amount of food that could be produced!
Other environmental factors limiting the Earth's carrying capacity include the nitrogen cycle, the available amount of phosphorous, and atmospheric carbon concentration.
It could be predicted that if humans could not obtain resources from other planets within 80 years, the energy crisis and food crisis caused by the population explosion on Earth would cause a large-scale famine, or even a global war!
Another conclusion of this research project was that it was not feasible to delay the depletion of resources by limiting fertility. That would lead to the stagnation of the development of human civilization, or even a reversal!
This was because the comprehensive development of mankind required a large number of basic population. Take natural science as an example. It included astronomy, physics, chemistry, earth science, biology, and geography.
At present, the proportion of people engaged in research in the field of natural science accounted for three thousandths of the total population.
Every sub-branch of natural science was a huge field of knowledge. For example, physics was divided into mechanics, sound, light, heat, electromagnetism, molecular principles, atomic principles, quantum science...
Each branch required a large number of basic researchers.
The number of basic researchers determined the number of top scientists (from a macro perspective, for example, the ratio of one top scientist out of 10000 basic scientists)
Through the research of this subject, we came up with a contradictory contradiction--
If the human population did not exceed a certain number, then civilization would not develop. The total resources on Earth limited the total human population!
It could be foreseen that according to the current law of development, mankind would fall into a deadlock because of this contradiction.
Wang Jingyun felt that her teacher's words today were filled with deep mockery!
It was like a person who thought he was extremely powerful being exposed in front of his face!
Wang Jingyun naturally couldn't give an answer to his teacher's words.
It was getting late. Wang Jingyun understood that Teacher Tang Rui was getting on in years, so she drove him home.
As they took the elevator upstairs, Tang Rui stared at Wang Jingyun's face seriously.
Wang Jingyun felt strange and asked," Teacher, what's wrong?”
Tang Rui didn't say anything. He just pointed to the top of his head and said,"
"You are my best student! The sun will give us the answer to our conversation today!”
Wang Jingyun didn't understand.
He felt that his teacher's thoughts were very strange today. It was very jumpy, as if he wanted to express something!
Even when he returned home, Wang Jingyun tossed and turned in bed, unable to fall asleep.
Subconsciously, he felt that something very important was about to happen.
(Note: The solar crisis in this chapter is somewhat similar to the solar crisis plot in a book. Solar crisis is a common setting in science fiction! The reason for the solar crisis in this book and the plot after it were completely different.）
This book comes from：m.funovel.com。