Key Insights About Decision Making

• "Once the present turns into the past, everybody's a genius" - Lloyd on the danger of using after-acquired information to judge past decisions
• The 1976 Judgment of Paris shocked the wine world when Californian wines defeated French in blind tastings
• Early technology decisions at Stripe like Ruby and MongoDB still define the company 15 years later, demonstrating how "initial conditions" shape decades of engineering work
• Index fund investing has been 'solved' - the challenge is psychological discipline to avoid checking portfolios and making emotional decisions
• Most things in business are two-way doors that swing both ways - very few decisions can actually kill your company
• The third archetype plays for love of the game itself, drawn to psychology and high-level decision-making with limited information
• High-stakes poker attracts those who enjoy "seeing the results of making high-level decisions with very limited information"
• The delayed choice experiment shows particles retroactively change their past behavior based on future measurement decisions
• "You could leave life right now. Let that determine what you do and say and think" - Marcus Aurelius on using mortality awareness to guide present decisions
• Elon calculated making 100 command decisions daily during production hell, accepting 20% would be wrong - "If I don't make decisions, we die."