Episode 69: Fully Paid Lending, The AI Monte Carlo Trap, and Longevity Medicine with Dr. Nathan Ruch

August 10th, 2026  |  36 mins 26 secs

ai, financial independence, longevity, monte carlo simulation, oncentration risk, retirement planning, securities lending, tax planning

A listener asks whether he should enroll in Vanguard's Fully Paid Lending Program on a concentrated stock position. Another listener runs a 70,000-scenario Monte Carlo in Claude that gives him a 92.67 percent success rate on his retirement plan — his wife is not convinced, and Stephan sides with her. Plus, Dr. Nathan Ruch of the Princeton Longevity Center on what proactive longevity medicine looks like when resources are not the constraint.