the payoff of ? against ? is bigger than the payoff of ? against S',

对?的收益大于?对S‘的收益
and suppose that a mutation arises,

假设突然出现了一种突变
sorry Rahul here we go again.

抱歉还用拉胡尔打比方吧
So as the mutation arises, here's Rahul our mutation,

即拉胡尔这个突变个体出现了
and he's going to be randomly matched against one of you guys.

他会被随机得和你们中的一个人配对
So let's compare Rahul's payoff against this gentleman's payoff.

我们比较一下拉胡尔和这位先生的收益
Stand up a second. Your name is?

请起立请问你叫什么
Pat.

帕特
Pat, all right.

帕特好的
So Pat is our typical ? incumbent ant,

帕特是只典型的原始?型蚂蚁
doesn't look like an ant but never mind,

虽然他看起来完全不像蚂蚁无所谓了
stretch your imagination a bit.

发挥一下想象力吧