A black swan theory or theory of black swan events is a metaphor that describes an event that comes as a surprise, has a major effect, and is often inappropriately... Read more (unconventionalparents.com)
These market anomalies have become known as black swan events because like a black swan they are rare. (realsmartbeta.com)
«We may observe more black swan events in animal populations in the future because of these climate extremes,» he says. (sciencenews.org)