If human beings disappear, what can prove that human civilization once existed?

So far, there is no conclusive evidence that there are other civilizations on the earth, but through the exploration of ancient books and sites, it is found that human beings may not be the only civilization on the earth.

We can guess that prehistoric civilizations once existed on the earth, because there are traces on the earth to show their existence. And we all understand the truth that everything has life and death, and human beings will leave the earth one day. This departure may be the migration of stars or the extinction of human beings. If humans really left, what evidence can prove that human civilization once existed?

After thousands of years, the advanced civilization that mankind once established on the earth will disappear. All traces of human activities have also been removed by nature, and the environment will get better and better. Maybe there will be new life in 654.38 billion years. After all, human civilization is a technological civilization. When we leave the earth, we always try our best to leave traces of our existence and prove that we have been to this universe.

Some people say nothing can kill time. Yes, human civilization has lasted for millions of years, maybe thousands of years, even billions of years, but it will eventually resist the race against time. Joining the human race is really gone. We must leave a trail and let the next generation of civilization discover our brilliant achievements.

It has been said that fossils are the most direct, but fossils can not let the next generation of civilization know the brilliant achievements of human beings, but only prove that human beings once existed. Therefore, human beings should use the most primitive information carrier to record the brilliant civilization of human beings, that is, stones. The information of human civilization recorded on the stone can be preserved for hundreds of millions of years, which can let the next generation know about human civilization.

It is also possible that some projects in our scientific and technological development may remain. With the erosion of years, many core products will go underground and be preserved, and even some buildings will be buried deep underground. With the continuous progress of human civilization, we can't judge whether human science and technology can make tools that can be stored for hundreds of millions of years in the future.

The use of metallic uranium is also a very powerful nuclear energy material. It can't carry out nuclear fusion independently, and it must rely on external forces. Traces of uranium preservation and processing can well prove that human beings once existed.

Using human civilization to launch probes into space may one day be intercepted by other higher civilizations, and we can know that there was a brilliant civilization in the distant universe, that is, human civilization.

How much we want to live on the earth for a long time, but the laws of nature can't be broken, and mankind will eventually leave this beautiful world. What we can do is to discover to the next generation of civilization that we have had brilliant achievements.