This academic essay recollects as a start crucial aspects of my school- and work-life focusing personal and epistemological causes possibly related to increased didactisation and hence professionalisation of Norwegian teacher education.The first part outlines chosen aspects diachronically, as a chronicle, focusing possible hidden lines between my preferred school subjects and later choice of academic disciplines on my disciplinary journey as pupil, student, teacher, researcher, untill I end as teacher educator. The second part works as a synchronical contextualisation of my personal, subjective, disciplinary story. The key concept throughout the text is knowledge-development (Norw. kunnskapsutvikling) which is seen both as a personal and collective epistemological mechanism that, intertwined, changes persons, disciplines, institutions, and societies. Increased professionalism is believed to be fuelled by different forms of knowledge-development processes, such as theorising, textualisation, academisation, and especially didactisation. It is concluded that although such processes of professionalisation often are explained by their form and function, their content or their epistemological aspects are crucial too, which the story aims to illustrate. The essay reasonates and searches recognition rather abductively. To validate this personal text, it aims at following Habermasian truthful telling, documented claims, and honest discourse.