The Best Argument Against God by Graham Oppy

Argues that, when judged by standard criteria of theory choice—simplicity, coherence, explanatory power, and fit with evidence—a naturalistic worldview outperforms theistic hypotheses. It surveys and critiques major arguments for God, including cosmological, design, moral, and experiential claims, contending that none provide net support once theoretical costs and viable alternatives are weighed. The central thesis is that the strongest case against theism is comparative: across the full evidential landscape, the theistic research program fares worse than naturalism, which can explain meaning, morality, and religious experience without invoking the divine.

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