Comments on: No black tulip bulbs, no black swans http://blogs.reuters.com/globalinvesting/2008/12/10/no-black-tulip-bulbs-no-black-swans/ Insights behind the investment headlines Wed, 16 Nov 2016 21:43:49 +0000 hourly 1 http://wordpress.org/?v=4.2.5 By: Ian Kemmish http://blogs.reuters.com/globalinvesting/2008/12/10/no-black-tulip-bulbs-no-black-swans/comment-page-1/#comment-973 Wed, 10 Dec 2008 20:41:52 +0000 http://blogs.reuters.com/globalinvesting/?p=600#comment-973 To all mathematicians save one currently popular one, the phrase “black swan” has always meant the exact opposite of what it now means in the press.

A black swan was a idle curiosity: something had no reason not to exist, and whose nonexistence could only be proved by exhaustive enumeration; conversely, the discovery that such did creatures did exist would not require any rule books to be thrown out, and would only appear to be a major scientific discovery to non-scientists.

I believe the “black swan problem” is discussed in Russell’s Principia.

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