He wrote > for a certain group of college grads Also, even if he hadn't said that, I don't know, do we really have to explain for statements clearly mean

He wrote > for a certain group of college grads Also, even if he hadn't said that, I don't know, do we really have to explain for statements clearly meant to be understood that way what "statistical" means, on HN, and in a thread about Ph.D.s? How many go back to a Ph.D. program once they are in an industry vs. how many get there without having left academia?