It's an important maxim that the unfamiliar is not the same as the improbable, and in fact, that's why we at Cambridge University are setting up a center to study how to mitigate these existential risks.
有一个值得一提的格言是 不常见并不等于不可能发生， 事实上，我们在剑桥大学 建立的一个如何去减轻 这些真实存在的风险的研究中心 也是出于同样的考虑。