Black swan emblems and popular culture and Swan Nook (Tas). The Gazetter also lists two "White Swan" toponyms: a mine and reservoir near St Arnaud, on the Victorian goldfields. A clear concentration is evident in New South Wales and Tasmania. By contrast, the toponymist Reed lists only three examples: Swan Hill and Swan Pond in Victoria, and Swan Point in Tasmania (all named by explorers after sighting black swans in large numbers). In Sydney, there are thirteen "Swan" street names and one "Black Swan" street name, in contrast to a lone "Swan" street name in Darwin. The rarer form of "Cygnet" ("young swan") occasionally occurs. The
Black swan theory black swan event depends on the observer. For example, what may be a black swan surprise for a turkey is not a black swan surprise to its butcher; hence the objective should be to "avoid being the turkey" by identifying areas of vulnerability in order to "turn the Black Swans white". Taleb's black swan is different from the earlier philosophical versions of the problem, specifically in epistemology, as it concerns a phenomenon with specific empirical and statistical properties which he calls, "the fourth quadrant". Taleb's problem is about epistemic limitations in some parts of the areas covered in decision making.