How long will humans live on Earth?

I believe people have heard about the prophecy of the end of 2012? When December 21, 2019 passed, we realized that this was just a rumor. So, how long can human beings live in this home? When will the real end of the world happen?

Everyone knows that our lives cannot be separated from the light and heat given by the sun, and the sun can still heat humans normally for 4 billion years. After 4 billion years, the sun will continue to expand until the earth is swallowed up. The sun continues to heat the earth for 40 million years without any problem, because the 40 million years of heat is less than 1% of the total sun. Therefore, people can define 40 million years as a time target for survival on Earth.

But what really affects people's living time on this earth is not the sun, not all external factors, but human beings themselves. If the industrial revolution 200 years ago was a qualitative leap in human science and technology, then the natural resources consumed during the 200 years were N times the total amount of resources used in the previous 4 million years. In industry, in agriculture, in life, everywhere is wasted and destroyed everywhere. If we continue to develop in this direction, the world will be beyond recognition for 400 years.

Resources on Earth are divided into renewable resources and non-renewable resources. Although the recovery performance of renewable resources is very strong, the amount of renewable resources is limited. Therefore, the survival and development of human beings, in the final analysis, depends on how long the resources on the earth can be consumed by humans.

In fact, the 40 million-year struggle goal mentioned just now is only a very conservative statement. The time the sun can supply the earth is far more than that. Even if some disasters, such as asteroids hit the Earth, human beings are fully capable of resisting. Now, humans have developed a super-performance missile that can change the asteroid's orbit and avoid hitting the Earth. , causing disaster. Therefore, those of us who live on the earth do not have to worry about people.

However, this does not mean that we can relax. If the earth is destroyed, the reason is all in human beings!

Second day: Li Wei