In Steven Spielberg’s 1977 film “Close Encounters of the Third Kind,” extraterrestrials communicate with humans through a catchy five-note sequence. In Spielberg’s 1982 blockbuster “E.T.,” a diminutive alien learns basic English from a children’s TV show. More recently, in 2016’s “Arrival,” squid-like visitors use pictograms to make themselves understood to American scientists wielding whiteboards with words.
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Source: Phys.org