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.
![](https://i1.wp.com/www.neuner.net/wp-content/uploads/2016/10/Shaken-not-stirred.png?resize=326%2C245)
British pound. Shaken, not stirred
The British pound plunged more than 6 per cent to $1.1841 in two minutes (06.10.2016) hitting a new 31-year low against the US dollar in […]