“Ancient Beacons Long for Notice” is Dario Robleto’s third and final work in a trilogy of video and sound installations that investigate the scientific, philosophical, and moral tensions when attempting to represent the totality of human life even after humans cease to exist. See this film in “Dario Robleto: The Signal,” on view through May 12-October 27, 2024, at the Amon Carter Museum of American Art.