What does the evidence say?
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A laboratory reaction supports one step of the vent hypothesis
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The head-shape experiment altered signaling, not a single gene
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The mitochondrial energy argument has a published counterargument
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Alternative genetic polymers demonstrate possibility within an engineered system
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Nuclear ancestry cannot be inferred from mitochondrial absence alone
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Bacterial electrical signaling does not establish subjective experience
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Predicting a structure answers a different question from reconstructing folding
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A fruit-fly interaction study does not quantify missing human heritability
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Hydrogen in a moon’s plume supports a habitable-energy question
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Isotope records constrain ancient oceans without proving one inevitable pathway
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A feedback model does not require a planet to reproduce
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Climate risk increases with warming rather than depending on one deadline