About: http://webisa.webdatacommons.org/136699581

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Taleb claims that the coordinated terrorist attacks of 11 September 2001 in the United States are a perfect example of a black swan event because they were unexpected, had a huge impact on policy and were difficult to predict.
http://www.w3.org/ns/prov#wasQuotedFrom	weforum.org