Another terrible thing about the human brain is that it has no pain. Unlike other body organs, as long as they are injured, they will feel severe pain. There is no pain sensor in the brain, which is why doctors can perform brain surgery on patients when they are awake without affecting their vision and mobility.
The earth may be an alien prison.
Some scientists have studied human characteristics. They think that human beings will be sunburned by the sun, which is not suitable for the performance of the earth, and then guess that human beings may not have evolved, but were exiled to the earth by aliens tens of thousands of years ago. The entire solar system may be an alien prison. In 2005, unmanned spacecraft detected that the outermost circle of the solar system was 9 billion kilometers away. At 20 billion kilometers, the movement speed of all objects began to slow down and was gradually destroyed.
The human world is actually a program.
Cosmologist Allen Gus put forward a view that maybe human beings are just experiments conducted by an alien creature, and the present human world may be a man-made world. Human beings are designed and virtual, and alien creatures control us, because some people once thought that the process of human beings from birth to death was too procedural, just like executing a specified program and completing a task and then disappearing, but all this has not been finalized. If not.