American entrepreneur who sold Braintree/Venmo for $800M and subsequently launched Blueprint, a radical biohacking protocol to measure and reverse biological aging, and OS Fund, which invests in companies decoding the operating systems of life.
Created the most systematically documented human longevity self-experiment — spending ~$2M/year measuring every biomarker and optimizing every behavior — making radical life extension protocols visible and discussable in mainstream culture.
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