I enjoyed the article for the most part but thought that the idea (last few sentences) that one can subscribe either to a psychosocial model or to a medical/biological one to be simplistic, misleading and really not rooted in evidence. The best evidence out there suggests that of course all of it (genes, in utero environment, parenting, schooling etc.), makes up who we are and how we feel, that medication can be a lifesaver and that babies are not simply blank slates but people with personalities.