Lebanese-American professor/author Nassim Taleb coined the term '(What colour/color What creature?)' referring to an unpredictable random event that has a vast societal/political/economic impact?
Chenopis atratus Black swan Cygnus atratus Anas atrata Byahmul Cygne noir Black swans Black Swan
byahmul black swan black swans cygne noir chenopis atratus anas atrata cygnus atratus
black swan
WikipediaEntity
Black Swan