And if you average every face together,

如果你将所有脸孔综合起来
you get a face that--

你会得到一张这样的脸孔
where nothing bad has happened to it.

完全没有瑕疵的面孔
There's no distortion, there's no deviation.

没有变形没有偏差
As one gets older,

当人越来越老
the face gets less symmetrical and so on.

面孔会变得越来越不对称等等
Average-ness seems to factor out all the bad things that could happen.

平均好像可以让所有缺陷都消失
Good theory.

这个理论有道理
How do we know it's true?

我们怎么知道这是真的呢
Well, there's a photo roster that comes--

这里有一张照片名称列表
that I have access to for this class.

我能得到这个班的照片名称表
So, I can look at each of your pictures,

所以我能看到你们每个人的照片