Upshot: This eclectic collection of essays attempts to make sense of the complexly vexed relation between various modalities of sense-making and non-sense - a relation previously underspecified by enactivist theories and programs of research. As such, the book offers creative conceptual elaboration often augmented by analysis of experimental research in support of the enactivist approach to cognition.

Upshot: For communicating second-order science, von Foerster’s ethical imperative provides a viable starting point. Proceeding from this, we plead in favour of emphasising the common grounds of diverging scientific opinions and of various approaches in second-order science instead of focussing on the differences. This will provide a basis for communication and stimulate scientific self-reflection.

New empirical evidence on the long-term effects of oestrogen treatment for tall adolescent girls has shown that the intended psychosocial benefit of the treatment may not have been realised. This paper describes recent trends in the prevalence of the treatment and the results of a large Australian cohort study evaluating girls assessed between 1959 and 1993 for excessive growth. The paper concludes that oestrogen treatment to prevent extreme tallness should belong to the past, not to the future.