Who put the wormhole in the interstellar space?

First of all, Interstellar's original works have told us that wormholes are set by future human beings who have evolved to travel freely in high-dimensional space, that is, the descendants of earth civilization. According to the description in the movie, the wormhole was built by a five-dimensional civilization.

First of all, we must understand that what happened has happened and there is no way to change it. Even if someone crosses, his crossing behavior will be written into the history books. Will the influence of his crossing change history? The answer is that he didn't change history, but re-created it.

Therefore, according to the interstellar worldview, the future human beings will develop from the earth civilization, so the future history books of human beings will write: One day, the environment of the earth is deteriorating, and human beings are about to face extinction, and then a wormhole will appear near Saturn. Humans solved the gravitational equation by exploring new planets, and finally Murphy Cooper solved the research problem of gravitational equation. Before the destruction of the earth, Saturn station was established, and some human beings survived.

Although the five-latitude civilization transcends the time limit, it originated from the earth. Therefore, the earth civilization cannot be destroyed. Of course, the five-latitude civilization transcended time and set a key time point in the history books, and set a key wormhole near Saturn.

Because it is recorded in history that Dr. Murphy solved the gravitational equation, the five-dimensional civilization created a wormhole and established a hypercube with Murphy's bedroom as the node, which made her a figure in that history book.

To sum up, for future human beings, what they do is not to change history, but to do what they should do according to what happened in history.