N N Taleb's Probability Questions (UNOFFICIAL) Alexander Taleb: Why Do Planes Crash? (2025)
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Nov 11, 2025 Alexander Taleb, an aerospace engineer and lecturer focused on aircraft safety and spaceflight. He walks through safety trends and validation, redundancy and human factors. He probes design failures like the 737 MAX, discusses automation versus pilot skill, airworthiness directives and Boeing culture. He also covers spaceflight reliability, reusable rockets and the economics of lunar activity.
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Air Travel Is Exceptionally Safe
- Air travel is statistically the safest mode of transport with U.S. Part 121 carriers seeing years with zero onboard passenger fatalities.
- Alexander Taleb notes a U.S. nine-year hull-loss-free streak and that most onboard deaths are medical, not crash-related, showing systemic safety gains.
Two Ways Aircraft Achieve Robustness
- Robust aircraft design uses fault resistance or fault tolerance to survive stresses and component failures.
- Taleb contrasts a single strong tree trunk (resistance) with many leaves (tolerance) and cites Boeing 777 engine-out capability and destructive wing tests.
Swiss Cheese Model Prevents Cascades
- Swiss cheese safety model expects component failures and layers defenses so single faults don't produce catastrophe.
- Taleb stresses designing with assumed failures and layering human, mechanical, and procedural protections to avoid aligned holes.