Invariably the first question we ask is the wrong one. Here's why

Invariably the first question we ask is the wrong one. Here's why

Invariably the first question we ask is the wrong one. Here's whyGareth Lock
Published on: 03/08/2026

Brian Bugge, Linnea Mills and a twelve-year-old in Texas. After each death the industry asked whose fault it was. The research shows why that question fails everyone involved, and why punishment fills the space where learning should be.

THD-EnglishTHD-Learning, Incidents & Just Culture
Who Can You Trust? Is the Trust Misplaced?

Who Can You Trust? Is the Trust Misplaced?

Who Can You Trust? Is the Trust Misplaced?Gareth Lock
Published on: 25/07/2026

Trust in diving comes in two forms: system trust from cards and paperwork, and personal trust built through honest, task-level teamwork. Strong safety depends on both, because real risk is managed when divers speak up and validate competency

THD-EnglishTHD-Safety & Risk ManagementTHD-Education & Content Type
When you say it is easy to call a dive... If you've got POWER, it is easier

When you say it is easy to call a dive... If you've got POWER, it is easier

When you say it is easy to call a dive... If you've got POWER, it is easierGareth Lock
Published on: 07/07/2026

Telling divers to 'just speak up' misses why they stay quiet. Speaking carries an immediate social cost; silence pays later. Power isn't rank, it's how much you have to lose. Those who see the problem most clearly often have the least room to say so.

THD-EnglishTHD-Sense-making, Decision-making, & PsychologyTHD-CRM, Leadership & Teamwork
Technical Skills Are Not Enough: Human Factors in Diving and the Difference Between Chaos and Coordination

Technical Skills Are Not Enough: Human Factors in Diving and the Difference Between Chaos and Coordination

Technical Skills Are Not Enough: Human Factors in Diving and the Difference Between Chaos and CoordinationGareth Lock
Published on: 02/07/2026

One serious event with a casualty; many gaps in performance. One fatality; a team working effectively, a robust debrief, and reduced post-event trauma. Same dive centre. Different instructors. Same Course Director. What was different? Applied Skills.

THD-EnglishTHD-Learning, Incidents & Just CultureTHD-Education & Content Type
The Insurance Illusion

The Insurance Illusion

The Insurance IllusionGareth Lock
Published on: 25/06/2026

Following a conversation, veteran dive-industry underwriters reveal how diving insurance really works, why premiums are soaring, and why cover is no safety net. A clear-eyed look at claims, risk and why capability, not paperwork, keeps divers safe.

THD-EnglishTHD-Education & Content Type
Your Body Can't Cash the Cheque Your Ego Is Writing

Your Body Can't Cash the Cheque Your Ego Is Writing

Your Body Can't Cash the Cheque Your Ego Is WritingGareth Lock
Published on: 17/06/2026

A capable diver dies pushing past his limits. Drawing on the Fairchild B-52 crash and Doc Deep, this piece explores normalisation of deviance, ego, and why in diving, where no one can ground you, culture and a good team are the only real brake.

THD-EnglishTHD-Learning, Incidents & Just Culture

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