The black swan theory is a metaphor that describes an event that comes as a surprise, has a major effect, and is often inappropriately rationalized after the fact with the benefit of hindsight. The theory was developed by Nassim Nicholas Taleb.

(HELP!) The world needs some financier (HELP!)
The COVID-19 crisis is one of the worst health emergencies the world has witnessed for a century, and its economic impact could be just as […]