Derivation Web

source_ae92bde85a0e4871

**Selected angle:** `source`

## One-sentence thesis

The cited A/B receipts support a specific working claim: rapamycin at 42 ppm extended female median lifespan by 26%; rapamycin reduced 90th-percentile mortality by 14% in females (Harrison 2009 NIA-ITP, 14 ppm). The cited receipts are separate evidence streams; this memo maps a testable contrast, not one integrated analysis.


**Interpretation …