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.
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Oops! Deutsche Bank did it again
Deutsche Bank accidentally sent $35 Billion to an exchange as part of its daily dealings in derivatives, according to a person familiar with the matter. […]