The only numbers that appear for the trailing ten years are numbers that are associated with firms that are still in business.

那些用于分析过去10年市场的数字,只能来自于目前仍在营业的公司

耶鲁公开课 - 金融市场课程节选

The thing is still not dominated and we could still have done exactly the same analysis, and actually you can see I'm not very far off in the numbers I made up, but things are not perfectly symmetric.

这虽然不能成为劣势策略,但我们还是能得出一样的分析结果,实际上这和我编的数字相差也不是很远,凡事并不总是绝对对称的嘛

耶鲁公开课 - 博弈论课程节选