Maverick thinker Nassim Nicholas Taleb had an illustrious career on Wall Street before turning his focus to his black swan theory. Not all swans are white, rather than all events-no matter what professionals think-are predictable. Taleb demonstrates dark swans, like 9/11, cannot be foreseen and also have an immeasurable effect on the globe. ‘[Taleb] administers a severe thrashing to MBA- and Nobel Prize-credentialed professionals who make their living from economic forecasting.’-Booklist