# Quote — Nassim Nicholas Taleb, Fooled by Randomness

> In most disciplines... asymmetry does not matter. ...People in most fields ...do not have problems eliminating extreme values from their sample, when the difference in payoff between different outcomes is not significant ...A professor ...removes the ...s, and takes the average of the remaining ones, without ...being ...unsound. A casual weather forecaster does the same ...So people in finance borrow the technique and ignore infrequent events, not knowing that the effect ...can bankrupt a company.

- Author: [Nassim Nicholas Taleb](https://www.leafyquotes.com/nassim-nicholas-taleb.md)
- Book: [Fooled by Randomness](https://www.leafyquotes.com/nassim-nicholas-taleb/fooled-by-randomness.md)
- Source: [Wikiquote](https://en.wikiquote.org/wiki/Nassim_Nicholas_Taleb#Fooled_by_Randomness_(2001)) ([CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/))
- Quote page: https://www.leafyquotes.com/nassim-nicholas-taleb/fooled-by-randomness/in-most-disciplines

## More from this book

> The information that a person derived some profit in the past... by itself, is neither meaningful nor relevant. We need to know the size of the population from which he came. If the initial population is 10,000 managers, I would ignore the results.

[Quote page](https://www.leafyquotes.com/nassim-nicholas-taleb/fooled-by-randomness/the-information-that.md)

> [B]ecoming more rational, or not feeling the emotions of social slights, is not part of the human race... not with our current biology. There is no solace to be found from reasoning...

[Quote page](https://www.leafyquotes.com/nassim-nicholas-taleb/fooled-by-randomness/b-ecoming-more-rational.md)

> A mistake is not something to be determined after the fact, but in the light of the information until that point.

[Quote page](https://www.leafyquotes.com/nassim-nicholas-taleb/fooled-by-randomness/a-mistake-is-not.md)