> The black swan is something that is completely unforeseeable and for which there are no previous partial or complete examples, either of the final outcome or the contributing causes.
As far as someone is concerned. You misunderstand what a Black Swan event is. A Black Swan is at the root an opacity problem, and not one of forecasting. 9/11 certainly wasn't a Black Swan event for the hijackers or the masterminds, but it was for everyone else.
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> The black swan is something that is completely unforeseeable and for which there are no previous partial or complete examples, either of the final outcome or the contributing causes.
As far as someone is concerned. You misunderstand what a Black Swan event is. A Black Swan is at the root an opacity problem, and not one of forecasting. 9/11 certainly wasn't a Black Swan event for the hijackers or the masterminds, but it was for everyone else.