There we go. Now if I do this, an infinite number of times, we should get roughly 50/50, but now we have the ability to do things only once in awhile.

开始，如果我们，不停地按这个按钮，我们大致会有一半的机会听到猫叫，但是我们每次只有一次按按钮的机会。

哈佛公开课 - 计算机科学课程节选

Well, suppose there were 5 billion people Roughly half of them are men half of them are women What we want to know then is how many possible people could the 2 5 billion men make altogether ? with the 2 5 billion women?

假设这有50亿人,非常粗糙地分为一半男,一半女,我们下面想知道的是,25亿男人和,25亿女人总共在一起,能制造多少可能的人？

耶鲁公开课 - 死亡课程节选