What is Black swan theory?
The '''Black Swan theory''' is a metaphor that describes an event that comes as a surprise, has a major effect, with little explanation as to why it happened. These events are typically not meant to happen, and are not prepared for, but are believed to have been unavoidable. The term was used because of an ancient saying that [[Black swan|black swans]] did not exist, until found in [[Australia]] in 1697. This was an unexpected event, hence the name. The theory was developed by [[Nassim Nicholas Taleb]] in 2001.<ref>{{cite book |last=Taleb |first=Nassim Nicholas |url=https://books.google.com/books?id=YdOYmYA2TJYC |title=The Black Swan: The Impact of the Highly Improbable |publisher=Penguin |year=2010 |isbn=978-0-14103459-1 |edition=2nd |place=London |access-date=25 April 2020 |orig-year=2007}}</ref> ==References== {{reflist}} [[Category:Human behavior]]