To answer this question, we must first consider whether there is an alien civilization. It should be noted here that alien life is not equal to alien civilization. Alien civilization refers to an alien intelligent creature that has developed its own civilization, and alien life is relatively more general.

It has been confirmed that there must be alien life in the universe, but it is uncertain whether there is alien civilization. Although it exists in theory, it is a pity that there is no conclusive evidence at present.

If there are alien civilizations in the universe, they should be very far away from us, perhaps in other spiral arms of the Milky Way, or even outside the Milky Way, because humans have not observed or received any signals from civilizations.

Back to the topic, a civilization that can treat human beings as experiments must be very advanced, and even developed to a level that human beings can't understand. This kind of civilization can be collectively called advanced civilization.

Because this advanced civilization has mastered advanced technology after a long period of development, even if they explore at home, they certainly don't have to wear expensive and bloated spacesuits. They have to rely on the resources of their own planet to develop and survive.

Most likely, because they have mastered the technology that humans can't understand, their activities are not limited to the periphery of their own planet, and they can even explore across galaxies and learn to absorb the energy of other planets to feed back their own planet.

These assumptions sound big and sci-fi, don't they? For Yuan, if you hold a flashlight, they may think you are a "god". Yuanmou is only about 1.7 million years ago.

If we compare the development of the universe to a marathon, then the degree and time of our human development may not even tie our shoelaces, so it is definitely not an illusion to have a civilization where we first started.

Personally, I think we can ask "Is it possible for human beings to be experiments of alien civilization?" There are two theoretical hypotheses in the scientific community that can also vividly explain the possibility of this question. One is "Forest Park Theory" and "Glass Box Theory".

Let's talk about the forest park theory first. Advanced civilization may have stumbled upon our planet with intelligent life when exploring the universe. At that time, we may still be in a very primitive society.

Here, I don't think alien civilizations will colonize or plunder resources when they see a planet. Now that they have the technology of space travel, the resources on the earth may be nothing to them. Maybe they just think it's funny.

So just as we humans set aside natural forest parks to observe the living habits of animals, we also chose to observe the earth. UFO may be the observer's "camera". Because of the poor concealment or the rapid development of the technology of "animals", the "camera" was accidentally seen by "animals" It doesn't really matter. Anyway, "animals" can't understand what it is.