canberrabirds

FW: [canberrabirds] black-swan events

To: <>
Subject: FW: [canberrabirds] black-swan events
From: "Geoffrey Dabb" <>
Date: Thu, 17 Jan 2013 16:37:33 +1100

 

-----Original Message-----
From: Des Clark-Walker [
Sent: Thursday, 17 January 2013 3:51 PM
To: Canberrabirds List
Subject: [canberrabirds] black-swan events

 

In recent reading of Nature I came across use of the term "black-swan event'.  Curious to know the meaning of this term and being a Western Australian I interrogated Google. There is a voluminous literature on black-swan theory and events, going back to the time when all swans were supposed to be white.  In essence, a black-swan event is a surprise, the event has a major effect and in hindsight it could have been predicted. Attack on The World Trade Center is an example.

 

I hope Geoffrey Dabb can dream up a suitable illustration?

 

Des Clark-Walker

 

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