Some of these formulas were written by Thorne himself, and the fonts were deliberately designed to be bloated, reflecting the characteristics of old brands. Others were written by Elena Murchikova and Keith Matthews of California Institute of Technology. Their writing is concise and capable, which reflects the elegance of Murphy, a young and middle-aged scientist in the film.
The key in the equation is the body field, which is different from the familiar gauge field and gravitational field. This is a new thing. Like the gravitational field, it can also spread in space. Due to the interaction between the body field and our membrane, the gravitational constant is different in different places on the earth, which can maintain the stability of the wormhole with time. Therefore, the batch field is very important. There is such a picture in the movie that Brand is meditating in the office, and the blackboard says that the auxiliary bulk yard may be the key! ?
In the film, Brand said before he died that he had solved this equation. According to the setting, in fact, Brand's solution only describes the outside of the black hole. Only when Murphy gets information from his father can he solve the equation completely. This is just the need of the plot. In order to get Cooper into a black hole, the study of unified theory has been going on for many years. No one has been to a black hole. We don't need data from black holes.
In the movie, after Murphy solved the equation, human soon had the ability to control gravity. The concrete solution is to reduce the gravity field intensity near the earth and easily launch a space capsule that can accommodate a large number of people into an orbit far away from the earth. The film even suggested that later humans could break through high dimensions and build a five-dimensional hypercube! It also formed a closed timeline, transmitting data back to the previous earth, saving the future of Cooper and mankind.
However, this is pure fantasy. In the film, Cooper uses gravity to control the clock on the earth. The problem is that the information inside a black hole cannot be known from the outside. Perhaps, the only possible way is quantum entanglement, so that two particles are entangled, one inside the black hole and the other outside the black hole.
Some people think that the internal structure of a black hole can be studied in this way, and the particles inside the black hole will change under the influence of the black hole. Accordingly, external particles will respond to its changes, and some information inside the black hole can be obtained indirectly by observing external particles. Cooper's watch and his daughter's watch are equivalent to a pair of intertwined substances. However, recent studies show that entangled states may not penetrate black holes, but may be destroyed in the process of entering black holes. This is a firewall model.