Now there many ways I can connect these two points together. The simplest way is to draw a straight line. It's called the linear interpolation. My line is not so straight, right here. You could do a different kind of line.

最简单的办法是,像这样画一条直线,这叫线性插值,不过我的这条线画得不太直，你也可以用别的办法,比如一条抛物线。

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We may be in a recession now; a lot of people are saying that, so I would be tempted to draw a new line here, somewhere around here, maybe December of 2007.

也许现在正在经历衰退,人们普遍这样认为,所以我想在这画条新的直线,画在这附近,也许是2007年12月

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