Whether one views animals through the lens of welfare or rights, the trajectory of human history points toward an expanding circle of empathy. As alternative technologies flourish—such as cultivated (lab-grown) meat, plant-based textiles, and advanced non-animal testing models—the historical justifications for animal exploitation are diminishing. The future of human civilization will likely be judged by our capacity to extend compassion, justice, and legal protections to the vulnerable sentient beings with whom we share the Earth.