If I buy land today

如果我现在买下土地
I'm going to get that rate of return on the land which corresponds to the p.

我将得到相当于p的收益率
It's going to be 81 percent, and so everything works out.

也就是81% 问题都解决啦
So what's this got to do with Social Security?

那么社保又会怎么做呢
Are there any questions about this?

对此有什么问题吗
I sense a little bit of puzzlement still.

我仍然感到一点疑惑
You shouldn't be that far away from understanding it,

你们就快要弄懂它了
so let's hear a question.

再提个问题吧
What don't you don't understand?

你们有啥还没懂的
Just point to an equation you don't understand. Yes.

提一个你们不懂的等式
Good, brave of you.

很好勇敢的孩子
Student: How do we show that theta should equal 1?

学生: 怎么才能得出theta=1呢