What is the most famous truth about dissecting aliens in history?

If a person really understands the universe, he will never deny the existence of aliens, because the universe is so big that we may not even be a grain of sand in it. Therefore, I have always believed in the existence of aliens. The United States has always had a secret military base, and it is said that there have always been aliens in it.

There are also many researchers at the military base to dissect aliens. Because in 1990, a spaceship was found to have crashed somewhere in the United States. The soldiers sealed off the incident and then secretly transported the aliens back to the base. When Trump was running for president, his opponent once said that if he was elected president, he would make things about aliens public, so I think many people in the top of the United States should know about it. It's no secret anymore.

This is, I think many advanced technologies in the United States come from aliens. These are American selfish ideas, and I think everyone on earth has the right to know such things. With the development of science and technology and the progress of human exploration of the universe, we will meet real aliens sooner or later. There have also been many UFOs in China. So I also firmly believe that there must be aliens in this world.

Moreover, the technology of aliens is much more developed than that of earthlings, because they can come and go freely. Moreover, aliens have visited the earth since ancient times, so some murals or reliefs inherited from ancient times look like aliens. At least aliens are harmless to the earth, so I also dream of witnessing the existence of aliens with my own eyes one day.