想像力

这是我经历过的一次真实的面试。

那次我去面试PM。面试官问我,有什么办法可以知道北京到上海的距离。我跟他说,我马上就可以到Google里面搜。他问除此之外还有什么办法,我说自己开车从上海到北京,看看里程表走了多少。另外,我经常坐北京到上海的火车,火车上总是会播报两地距离,火车时刻表上也有。如果我坐飞机,飞机上也会显示上海离北京有多远。我还可以用火车运行时间乘以平均行驶速度。面试官问,有什么精确一点的方法么。我说,如果需要精确,可以用GPS,在北京取一下、到了上海再取一下,GPS仪会告诉你位移是多少,非常准。如果没有GPS,可以在上海北京分别测量经纬度,然后根据地球半径,用球面三角的方法算出两地距离。他问,还有么?我停了停说,一时想不出来什么了。面试官显然很失望,他说,你为什么不在地图上量一下呢?

后来我看到,他给我的评语是"I don’t think he is fit for PM. He thinks quickly, but not very solid. I asked how to measure the distance between Shanghai and Beijing. His answer is not very promising. That’s also why I don’t suggest him to be a PM (I assume the PM should have good imagination)."

2005.03.03 Updated

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