On the suggestion of an advertisement, Theodore Twombly (Joaquin Phoenix) downloads what the ad declares to be the first artificially intelligent operating system—“not just an operating system, it’s a consciousness.” The software takes Apple’s Siri to a new level, interacting with the user in human-like ways. In a word, it’s a good bet the machine would pass the Turing Test. Theodore, a man in search of companionship, chooses a female voice, and with the voice of Scarlett Joh