“It’s not that they don’t care. It’s that they’ve given up.” This was how Commanding Officer Benjamin Sisko, played by Avery Brooks, described early 21st-century Americans in an episode from Star Trek: Deep Space Nine. When it aired in 1995, “Past Tense” spoke to contemporary concerns about homelessness by telling a story set in 2024—the near future for viewers, but the distant past for characters. In the two-part episode, Sisko and two of his companions from the U.S.S. Defiant find themselves stranded in San Francisco, where they’re reminded that the federal government had once set up a series of so-called “Sanctuary Districts” in a nationwide effort to seal off homeless Americans from the general population. Stuck in 2024, Sisko, who is black—along with his North African crewmate Dr. Julian Bashir and the fair-skinned operations officer Jadzia Dax—must contend with unfamiliar racism, classism, violence, and Americans’ apparent apathy toward human suffering.