Nassim Nicholas Taleb

Nassim Nicholas Taleb is a Lebanese-American author and former options trader who has had an unusual dual career as both a market practitioner and a philosopher of probability and uncertainty. His books — particularly "Fooled by Randomness" (2001), "The Black Swan" (2007), and "Antifragile" (2012) — have been enormously influential in investment, risk management, and broader intellectual discourse. "The Black Swan" popularized the concept that rare, high-impact events that are unpredictable in advance drive most of history and markets. His concept of "antifragility" argues that some systems benefit from volatility and disorder. He ran Empirica Capital, which profited during market crashes through options strategies. His technical work on probability and fat-tailed distributions has influenced how risk managers think about tail risk.