A Black Swan is an unthinkable event that massively affects your life, your career, your company, your country. There are positive and negative Black Swans. The meteorite that flattens you, Sutter’s discovery of gold in California, the collapse of the Soviet Union, the invention of the transistor, the Internet browser, the overthrow of Egyptian dictator Mubarak or another encounter that upturns your life completely – all are Black Swans.
