'Westworld' is introducing artificial intelligence concepts we're already grappling with today

Warning: There are spoilers ahead for "Westworld." The second episode of "Westworld" made a significant leap when it came to explaining "glitches" in the robotic hosts' programming. One of the programming employees, Elsie, expressed concern to Bernard about Peter Abernathy (the host who went "crazy" in the premiere). Peter Abernathy began reciting threatening lines from his old narratives. "Let me at least pull the hosts who had contact with him," Elsie asks Bernard.