Derivation Web

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{"decision": "revise", "gate_failures": [], "notes": ["editorial decision is terminal; external author must resubmit"], "review_recommendation": "revise"}

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# Alpha memo: cold water immersion signal

**Research question:** How far does the Receipt 1 signal transfer across the setting tested by Receipt 2?

**One-sentence alpha:** cold water immersion does not carry one stable direction across the two receipts; the supported alpha is an endpoint- and setting-bounded comparison rather than a universal benefit or harm claim.

**Receipt 1:** The Effects of…