In this episode, we explore Donald Rumsfeld's "known knowns, known unknowns, and unknown unknowns" concept and how it applies to risk management in diving. Using the Johari window model of self-reflection, we discuss the importance of understanding risks that divers face, from routine (known knowns) to unpredictable (unknown unknowns). The episode highlights the role of experience, training, and non-technical skills in preventing accidents and managing emergencies. Listeners will gain insights on improving their decision-making and awareness, so they can better navigate both anticipated and unforeseen challenges in their diving journeys.

Original blog: https://www.thehumandiver.com/blog/known-unknowns-are-they-considered-enough-in-diving

Links: Johari Window: https://en.wikipedia.org/wiki/Johari_window

Dunning Kruger effect: https://www.thehumandiver.com/blog/incompetent-and-unaware-you-don-t-know-what-you-don-t-know

Experience blog: https://www.thehumandiver.com/blog/complacency-the-silent-killer-but-it-s-not-that-simple

Charles Perrow, Normal Accidents: https://en.wikipedia.org/wiki/Normal_Accidents

Parker Turner’s cave collapse: https://www.sciencedaily.com/releases/2015/09/150901121005.htm

Aqaurius Project fatality: https://en.wikipedia.org/wiki/Dewey_Smith

Tags: English, Gareth Lock