The black swan symbolizes one of the historical problems of epistemology: if all the swans we have seen so far are white, can we decide that all the swans are white?
黑天鵝象徵著認識論的歷史問題之一:如果我們迄今為止看到的所有天鵝都是白色的,我們是否可以決定所有的天鵝都是白色的?