Aren’t you conceding the point of the piece, @JHS , when you surmise that even at Chicago in the “age of hyperselectivity” the introverted may now be being culled in favor of the extroverted? You must be assuming - probably correctly - that admissions officers who have a choice among lots of types will favor the extroverted ones. If that is happening at Chicago, how much more likely is it to be happening at the other elite schools, which have always favored those types? The UPenn prof may be operating with some first-hand observation of the matter. He has written a book - I haven’t read it - making a detailed case that the extroverted coming out of high school do not live up to their supposed promise. For all their showiness and volubility they will not exceed their drab classmates in becoming peerless leaders and sterling contributors to society. The quiet kids with grit and self-direction more often have the inner resources and classic virtues that in time make for real adult accomplishment. Who among us does not recognize some truth in that depiction of the high school scene? Well, apparently admissions officers at ivy league schools. I hope their counterparts at the U of C haven’t drunk the same Kool-Aid.