David Hume posed the issue in the following way (as rephrased in the black swan problem by... John Stuart… — Nassim Nicholas Taleb

David Hume posed the issue in the following way (as rephrased in the black swan problem by... John Stuart Mill) No amount of observations of white swans can allow the inference that all swans are white, but the observation of a single black swan is sufficient to refute that conclusion.

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