They evolve at a critical state built up by a history of irreversible and unexpected events, which physicist Murray Gell-Mann called "an accumulation of frozen accidents".
它們在一個由不可逆轉和意想不到的事件歷史所建立起來的臨界狀態下演變，物理學家默里·蓋爾曼稱之為「凍結事故的累積」。