Why don’t divers speak up? Human factors research shows it often depends on the dive leader. Learn the four kinds of leader, five ways divers raise concerns, and simple brief and debrief steps that make speaking up easier and diving safer.
Self-sufficiency builds capability, but performance comes from the system. The most successful divers manage margins, use the team, and recognise how drift, workload, and context shape decisions.
A 5-day cross-country road trip showed how quickly good planning fades once it starts working. Gas planning is the same life skill: set limits before pressure exists, protect the margin, brief every dive, and build the capacity to notice drift.
Diving's safety standards are written by the same agencies and manufacturers whose products they assess. This closed loop functions well as legal defence but less well as a learning system. What aviation and healthcare can teach us.
Human factors, non-technical skills and learning from emergent outcomes for the divers who refuse the bad-apple story.
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© 2026 The Human Diver