ClaimsNassim Taleb

“This part in Fooled by Randomness was inspired by the psychology of depositors in #Lebanon who enjoyed steady AND high returns.”

Nassim Taleb, author, on X 29 December 2020 Post by @nntaleb on X, 2020-12-29 (X)

Factual Their own work or organisation

A part of Fooled by Randomness was inspired by the psychology of Lebanese depositors who enjoyed steady and high returns.

Mostly true True in substance, wrong in a detail.

Factual: Statements about the present or the past, checked against the record: did they hold up?

The second judge would not resolve this claim; the verdict shown is the first judge's.

The evidence is the person's or their organisation's own records.

What would count as true or false

This is a statement about Taleb's own inspiration, judged as of 2020-12-29. True: Fooled by Randomness contains a passage about steady returns combined with hidden blow-up risk, and there is no evidence contradicting Taleb's account that Lebanese depositors inspired it. Supporting evidence would be earlier statements by Taleb, or text in the book that refers to Lebanon, Lebanese banking or similar depositors. Mostly true: the passage exists and the inspiration is plausible, but the book itself frames it with a different example (e.g. a fictional trader), with Lebanon given only as background. Mixed: the inspiration cannot be corroborated beyond Taleb's assertion and conflicts with his earlier accounts. Mostly false: earlier statements by Taleb credit a clearly different origin. False: no such passage exists in the book.

Set before the research began.

Evidence (4)

  1. E1 A Lebanese Technology Transfer nntaleb.substack.com (Nassim Nicholas Taleb) · 7 August 2026 Own record

    “By a curious technology transfer, yours truly generalized from Lebanon and applied overseas.”
  2. E2 A Lebanese Technology Transfer nntaleb.substack.com (Nassim Nicholas Taleb) · 7 August 2026 Own record

    “Depositors were making steady income from the carry trade and fooled by it”
  3. E3 A Lebanese Technology Transfer nntaleb.substack.com (Nassim Nicholas Taleb) · 7 August 2026 Own record

    “I gave a talk sponsored by the Lebanese Central Bank at AUB in 1998 called “unsafe at any speed” (a Ralph Nader title), causing me to receive all manner of insults for the following twenty years”
  4. E4 Full text of "Fooled By Randomness Nassim Taleb" Internet Archive (third-party digitised copy) · 23 October 2016 Own record

    “He is as conservative a trader as one can be in such a business. In the past he has had good years and less than good years - but virtually no truly “bad” years.”

Reasoning

A digitised copy of Fooled by Randomness (E4) has a passage about a trader with steady results and "virtually no truly 'bad' years". That matches the steady-returns theme, but the excerpt tells it through a trader, and the excerpts fetched never mention Lebanon. Taleb's later Substack post (E1–E3) says Lebanese depositors were "fooled" by steady income from the carry trade. He also says he gave a talk called "unsafe at any speed" at AUB in 1998, sponsored by the Lebanese Central Bank, and that he "generalized from Lebanon" [E1][E3]. Nothing in the evidence contradicts his account, so the inspiration is plausible but backed only by his own statements, with Lebanon at most in the background of the book. That fits the "mostly true" criterion.

Cite this claim

Nassim Taleb, “A part of Fooled by Randomness was inspired by the psychology of Lebanese depositors who enjoyed steady and high returns.” (said 29 December 2020). Verdict: mostly true. Reliability API, claim c_3af42abcd522, method 0.1.0+28da144b, dataset release v1.1.2. https://epistacklabs.com/claims/c_3af42abcd522

This claim is in dataset release v1.1.2, with the same verdict.

Reply to this claim

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  4. Resolved true Factual November 2021
    “I am writing these lines from the vantage point of my specialty of decision making under uncertainty, not that of theology”

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  5. Mostly true Factual 30 December 2019
    “My Lecture in Lebanese "From Ponzi to Localism" at the USJ, on Leb TV, during the riots.”

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All of them

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