来自《耶鲁大学开放课程—哲学：死亡第17集第17集》

half of them are women.

一半是女人
What we want to know then is,

那我们想要知道的是
how many possible people could the 2.5 billion men

这二十五亿男人和二十五亿女人
make altogether with the 2.5 billion women?

可能创造出多少潜在人类呢
The crucial point in thinking about this is

计算时至关重要的一点在于
to realize that every time you combine a different egg

每一颗不同的卵子
with a different sperm,

和每一颗不同的精子结合
you end up with a different person, right?

就会形成一个不同的人
If you combine an egg with a different sperm,

如果你把同一颗卵子和不同的精子结合
you get a different genetic code

你就得到了不同的遗传密码
that develops into a different person.

形成了不同的人
You combine that sperm with a different egg,

你用这颗精子与另一颗卵子结合