Ngokwalokhu okushiwo ngenhla, nikeza ezinye zezibonelo zezenzakalo ze - black swan. Bhala izenzakalo ohlwini olunezinhlamvu.
Context:Inkulumo ethi "isikhova esimnyama" ivela enkulumweni yesiLatini; ukuvela kwayo okudala okwaziwayo kuvela kumbongi waseRoma wekhulu lesi-2 uJuvenali ekuchazeni kwakhe i-Satire VI ngokuthile okuyi "rara avis in terris nigroque simillima cygno" ("inyoni engavamile emazweni futhi efana kakhulu nesikhova esimnyama").: 165 Ngenkathi kusetshenziswa le nkulumo, kwakuthiwa isikhova esimnyama asikho. Ukubaluleka kwalesi sifaniso kulele ekufaniseni kwaso nobuthakathaka banoma yiluphi uhlelo lokucabanga. Isethi yeziphetho ingase isuswe uma noma iyiphi yezimiso zayo eziyisisekelo iphikiswa. Kulokhu, ukubonwa kweqhwa elilodwa elimnyama bekuyoba ukubhujiswa kwanoma iluphi uhlelo lokucabanga, kanye nanoma ikuphi ukucabanga okwakulandela kulokho kucabanga okuyisisekelo.  Le nkulumo kaJuvenal yayiyinkulumo evamile eLondon yekhulu le-16 njengesaziso sokungenakwenzeka. Le nkulumo yaseLondon ivela emcabangweni weZwe Elidala wokuthi wonke ama-swan kumelwe abe mhlophe ngoba yonke imibhalo engokomlando yama-swan ibika ukuthi ayenezimpaphe ezimhlophe. Kuleso simo, i-swan emnyama yayingenakwenzeka noma okungenani yayingekho.  Kodwa-ke, ngo-1697, abahloli bamazwe baseDashi abaholwa nguWillem de Vlamingh baba ngabaseYurophu bokuqala ukubona ama-swans amnyama, eNtshonalanga Australia. Leli gama kamuva laguqulwa laba nomqondo wokuthi lokho okwakubonakala kungenakwenzeka kungenzeka kamuva kuphikiswe. UTaleb uphawula ukuthi ngekhulu le-19, uJohn Stuart Mill wasebenzisa inkulumo ethi i-black swan logical fallacy njengegama elisha lokuhlonza inkohliso.  Izenzakalo ze-black swan zaxoxwa nguNassim Nicholas Taleb encwadini yakhe ka-2001 ethi Fooled By Randomness, eyayiphathelene nezehlakalo zezezimali. Incwadi yakhe yango-2007 ethi The Black Swan yandisa lesi sifaniso ukuze sihlanganise nezenzakalo ezingaphandle kwezimakethe zezimali. UTaleb ubheka cishe zonke izinto ezinkulu ezitholakele kwezesayensi, izenzakalo ezingokomlando, nemisebenzi yobuciko "njengezinsikazi ezimnyama" - ezingaqondisiwe futhi ezingalindelekile. Unikeza ukuvela kwe - Internet, i - computer yomuntu siqu, iMpi Yezwe I, ukuwa kweSoviet Union, nokuhlaselwa kuka - September 11, 2001 njengezibonelo zezenzakalo ze - black swan.
Ngokwesigatshana esingenhla, nazi izibonelo ezimbalwa zemicimbi ye-swan emnyama: Ukwanda Kwe-Internet Ikhompyutha yomuntu siqu Impi Yezwe I Ukuhlakazwa kweSoviet Union Ukuhlaselwa kuka-September 11, 2001