The scientific boundary is an international organization in Liu's Three-body. Its original purpose was to "save the decaying human society with the help of external forces", and later its purpose was changed to "ensure the elimination of mankind", hoping that the three-body civilization would take over the earth. There are a large number of human social elites in its organization, and these members involve various fields. It can be seen that the organization of scientific boundaries was originally an organization dedicated to scientific exploration. They hope to change human society through the exploration of the universe. However, in the process of exploring higher civilization, this organization gradually evolved into an anti-human organization.

Many people don't understand why scientific boundaries have changed their initial intentions and become puppets of three-body civilization. In my opinion, this is all because the technology of three-body civilization is much higher than that of human civilization. The members of the scientific boundary did not have direct contact with the three-body civilization, they just received the information of the three-body civilization. It's as if human beings in ancient society were exposed to modern technology. Ancient humans can only explain modern science and technology with ancient civilization, because they can't understand the science and technology of modern civilization. Similarly, the top scientists in the scientific community, after receiving the information of the three-body civilization, tried to explain the three-body civilization by known scientific means. Unfortunately, the technology of three-body civilization far exceeds human civilization, and finally these top scientists have awe of three-body civilization. And some of them have become puppets of three-body civilization. They have long regarded the three-body civilization as the "creator". In their view, only stopping the development of human civilization is the best way to please the "creator".