Someone asked me why the students of famous primary school can have good exam results and "better" behaviour. The theory above applies here. It is understood that the famous school are very competitive so that parents have prepared to devote more time and money for their children otherwise they will not choose to apply for the schools concerned. For example, government school teachers rotate around the government primary schools but it is always the best school achieve better results when comparing to other government schools. It is because of the parents and such prior "filtering".
Prior Filtering is also important in investment psychology. Like 777, no one focus on this share. Graudally more people pay attention to it. Then they like it (i.e."prior filtering"). And followed by craziness. Then such filtering breaks as it announced to sell 91 Assistant to Baidu.
"本身就有完美身材" is not true IMHO. Professional swimmers swim for hours per day. Normal people just cannot do that.
Take the example of Cheung Ka Fai, u cannot say he "本身就有完美身材" http://www.campusrock.sg/23/post ... llish-training.html
I think the author was biased by the fame of Taleb, even a stupid excuse become a "good idea"!