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A black swan , a member of the species Cygnus atratus The black swan theory or theory of black swan events is a metaphor that describes an event that is a surprise (to the observer), has a major effect, and after the fact is often inappropriately rationalized with the benefit of hindsight . The theory was developed by Nassim Nicholas Taleb to explain:
In the Visualization and Behavior Group we take the perspective that data visualization should make data analytics accessible to anyone, not just the data's experts. We also believe that using social software for communication is the new norm, not a trend.