I then just cancel out the zeros and I'm back where I started,

我只是抵消了0然后又回到了开始的博弈
and of course I should defect.

所以我当然应该背叛
So what I'm going to see is because I'm going to defect anyway tomorrow,

我能想到的是我下一次肯定要背叛
today is just like a one shot game as well.

所以这一次也只是一个一次性博弈
And I'm going to get defect again.

所以我还是会背叛
Now here we played the game twice and got defect, defect,

现在我们做了两次这个博弈结果都是背叛
what about if we played the game three times? It's the same thing.

如果我们重复3次呢还会是一样的吗
We didn't play three times but we did play the game three times

我们的确已经重复这个博弈3次了
between Edwina and Ben.

在埃德温娜和本进行博弈的时候
There we know we're going to defect in the third round.

我们知道在第三轮我们还是会背叛
Therefore we may as well defect in the second to last round.

因此我们最好在第二轮到最后都背叛
Therefore we may as well defect in the first round.

所以我们最好在第一轮也背叛