Almost any game you play has some kind of randomness or pseudorandomness which means that things change overtime somewhat unpredictably.

大多数你所玩过的游戏都有某种,随机数或者伪随机数,这就意味着每个事件都存在不可预测性。

哈佛公开课 - 计算机科学课程节选

And we turned to a discussion of the unpredictability of death, -- the fact that because we don't know-- we can't predict--how much more time we've got, we may, as it were, pace ourselves incorrectly.

我们转而讨论死亡的不可预测性，因为我们不知道-,我们不能预测--我们还有多少时间，我们可能，可以说是，为自己定错了前进的速度。

耶鲁公开课 - 死亡课程节选