SH237: Decision Making: Normalisation of Deviance in Rebreather Cave Diving

SH237: Decision Making: Normalisation of Deviance in Rebreather Cave Diving

In this episode, we explore how easy it is for divers to drift into unsafe habits when risky behaviour seems to have no consequences, especially in small or high-performing cave and technical diving teams. A real example from a cave rebreather class shows how a simple shortcut- only a few metres and seemingly low-risk- could have broken a key rule of always maintaining a continuous guideline. Even when a team is skilled and conditions look perfect, small deviations can become normalised and lead to bigger risks later. We talk about why psychological safety, honest communication, and clear team standards are essential for spotting drift, challenging unsafe ideas, and learning from each other.

Original blog: https://www.thehumandiver.com/blog/top-tips-blog-normalisation-of-deviance-in-rebreather-cave-diving

Links: Normalisation of deviance: https://www.thehumandiver.com/blog/normalisation-of-deviance-not-about-rule-breaking

Psychological safety: https://www.thehumandiver.com/blog/what-we-get-wrong-about-psychological-safety-in-diving

Tags: English, Cave Diving, CCR, Decision Making, Lanny Vogel, Normalisation of Deviance, Teamwork

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Episoder(313)

SH313: 4. Am I Enough?

SH313: 4. Am I Enough?

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SH310: 2. More Than a Deep Dive: What a WWII Bomber Recovery Can Teach Us About Human Factors

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30 Sep 8min

SH309: Change around Safety Culture is Really Hard

SH309: Change around Safety Culture is Really Hard

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23 Sep 14min

SH308: We Know, and We Say Nothing

SH308: We Know, and We Say Nothing

This episode explores why experienced divers still die in situations that seem predictable, using the tragic 2026 Maldives cave accident as a starting point. It looks at how outcome bias, the normalis...

16 Sep 17min

SH307: 1. The 2026 HF in Diving Conference - What Did You Miss?

SH307: 1. The 2026 HF in Diving Conference - What Did You Miss?

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9 Sep 15min

SH306: Restorative Just Culture: Repairing Trust After an Event

SH306: Restorative Just Culture: Repairing Trust After an Event

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2 Sep 4min

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