Regardless of the color, Nassim Taleb is calling a swan a swan. Taleb, perhaps best known for his 2007 book "The Black Swan," is renewing his public concern about the state of the economy. A black swan is defined by Oxford Languages as "an unpredictable or unforeseen event." Taleb defined the concept a bit further, saying a black swan has three properties. To qualify, the event needs to 1) be an outlier, 2) produce extreme impact and 3) even though it's an outlier, explanations after the event o