For the sake of convenience, they name the heptapods Abbott and Costello. Louise is a single teacher who is a linguistic expert. They were able to impart the knowledge of their language to the humans. She sees visions of her yet-to-be-born daughter. They feel that the aliens are trying to tell them that all 12 countries have to unite their knowledge to understand the reason for their visit.
. They lose the ability to enter the craft now. One of the heptapods dies. If you go in expecting an action film, you will be disappointed. In short, Louise slowly develops the ability to experience her past, present, and future all at once. She steals a satellite phone, dials General Stang on this private number and tells him the Mandarin statement.
He isolates 12 repeating symbols that match with the number of alien crafts. In this vision, all the leaders of the world have gathered together to celebrate peace and their survival over the aliens. Inside the craft, she meets the heptapod. She understands the pain of all of this. She also sees a vision of her inside the craft.
The gravity in the craft is altered and is perpendicular to that of the Earth. This group of four army guys jumps to a conclusion that the aliens intend to attack. I suppose that is not the focus of the movie Arrival. Twelve bizarre and mysterious alien crafts situate themselves around the world, an expert linguist, Dr. Hoping to unravel the mystery, she takes a chance that could threaten her life and quite possibly all of mankind.
Of course, they use some ubercool space ink to write stuff. Through her learning process of the alien language, she begins to see visions of her future life. Perhaps just bracing for impact. Before they can communicate more, the bomb goes off. This shows that they have written text. But she still chooses to have Hannah. In the present, Louise now has access to this information.
As nations teeter on the verge of global war, Banks and her crew must race against time to find a way to communicate with the extraterrestrial visitors. This event will lead to the unification of the world to make us a species that will live long and prosper and to help other intergalactic beings. She goes back home, where she stays by herself, and dozes off following the news channel. Weber gets permissions and comes over to her place in a chopper to pick her up. While the trailer gives the impression of a movie similar to The Day the Earth Stood Still, it is nothing like that.
Language and communication is complex, especially with some advanced alien species, hence the process is long. By the time Louise does tell Ian about the cancer, it is too late. After being fired from his organization for reporting this to his superior, he takes a chance on discovering the truth: that his workplace is not quite what it seems to be and a sinister conspiracy is at work. He also tells her a line in Mandarin. She tells him that she needs to be at the site to help understand the conversation. Clearly, Ian gets to find out about the impending cancer that is going to plague the girl and he is unable to handle it and separates from Louise.
To simplify this, think of it this way — since time is non-linear for Louise, she gets information from her future and uses it in her present. The purpose of the aliens is now complete. But remember, Louise is now capable of seeing time non-linearly. Weber Government orders a nationwide shutdown and as a result the university is closed. All human scripts start on one side of a page and end on the other. He tells her that he came to the party only to meet her.