Black swan theory is an idea proposed by Nassim Nicolas Taleb that refers to unlikely, unpredictable events that have massive impact and are often incorrectly rationalized in hindsight.
Black Swan events have the following three attributes:
* Outlier — an event that is extremely rare and lies outside the realm of regular expectations
* Impact — an event that carries extreme impact that can be transformative for economies, societies, or individuals.
* Retrospective predictability — After the