@wendigo
L’explication du "Prochain contact dans 3000 années" :

(Warning : major spoilers) « After the death of Abbott (which Costello describes as “death process,” affirming the Heptapod’s non-linear perception of time), he reveals to Louise that the Heptapods will need earth’s help in 3,000 years. Though we never learn more about the nature of the threat, Costello clarifies the earlier confusion over the “weapon” he discussed with Louise. Less a tool of force and more of a gift of understanding, Costello lays the groundwork for the Heptapods’ future alliance with mankind by helping Louise learn their language. When she visits Costello by herself, wading in the murky atmosphere of the ship, she absorbs the total understanding of Costello’s form of communication, viewing time from the same omnipresent perspective of the Heptapods. »