In the past few hundred years, technology has profoundly changed the world. From heavy industry to nuclear weapons and the rise of artificial intelligence, what are the spiritual implications of these developments? Christians have long expected the end of the world. In this week’s service we ask: Will modern technology bring heaven on earth or the apocalypse? We also tell the story of Dorothy Day, a Catholic activist for peace and social justice, who opposed the dehumanizing extremes of capitalism and the threat of nuclear war.