But it is no fortune. While waiting outside the city's National Museum for the tourists to emerge, he talks about the changes in his half century of pedaling people around Phnom Penh.

VOA: standard.2010.06.14

What they did it--they said, we'll ask you the question and think about it, but while you're thinking about it--don't answer yet -we're going to spin this wheel of fortune.

实验是怎么进行的呢,他们说,我们会问你们问题,考虑一下,先不要回答,我们会转这个幸运轮盘

耶鲁公开课 - 金融市场课程节选