Of all the work in dive education, training instructors may be the most consequential. Because when you train an instructor, you are not teaching one person to dive — you are shaping everyone they will ever teach. Get it wrong, and the damage doesn't stop with one person. The system itself enters a cycle: poorly trained instructors produce poorly trained divers, and some of those divers will one day stand in front of students of their own.
The blind spot in the system
Current instructor training programmes operate under real constraints — limited time, fixed windows, measurable metrics. We have to decide, quickly, whether someone is ready to teach. And that decision rests almost entirely on technical skill and observable performance.
The process is familiar: candidates demonstrate skills at various levels. A fellow candidate playing the role of student makes deliberate errors; the instructor candidate is expected to catch and correct them. These things are necessary — I'm not arguing against them. But are they sufficient? That's the question we should all be asking.
Because here is what we actually see: candidates who perform flawlessly under assessment conditions, who catch every planted error without hesitation, often struggle badly when they face real students for the first time. The reason is straightforward. The "student" in the exam has five or six hundred dives. They are calm, competent, and playing a role. The real student is none of those things. They are genuinely afraid. They genuinely cannot do it. They genuinely need help. And it is precisely at that point that the textbooks and instructor manuals run out of things to say.
Situational awareness: the most under-discussed quality
What emerges in that gap is situational awareness — the ability to read what is actually happening in front of you and respond to it, rather than to the scenario you expected. In my view, it is the quality an instructor most needs to develop, and the one the system does least to cultivate.
There is no single correct way to teach anything to anyone. Yet the system consistently tells us otherwise: follow the manual. Apply the standard. But are the standards written for every person? The technical content of what must be taught is fixed, yes. But consider something as simple as mask clearing: will you teach it the same way, with the same approach, to every student who sits in front of you?
When you switch off your situational awareness — because the manual says to, or because it doesn't say not to — and begin to see the person in front of you as a performance target to be completed rather than a human being with their own fears and history, how much of what actually matters about diving can you possibly pass on?
Certification matters. Technical skill matters. But neither is sufficient — not for producing genuinely capable divers, not for conveying what it actually means to be underwater, and not for building the kind of instructors who can do those things for others.
This is the assumption Rubelis was built on
When I was designing Rubelis's programmes, I was never trying to create a certification pathway. I wasn't thinking about marketing — about where to add an image, or whether a video would hold attention better than a paragraph.
Because the foundation of this work is simple: if you have already decided not to read, not to engage with ideas, if your instinct is to consume quickly and move on — then Rubelis has nothing to offer you. These programmes were not designed for that.
Rubelis was designed for instructors and divers who are not satisfied with applying standard procedures to standard situations; who understand that every student is a different profile; who can translate technical and theoretical knowledge in ways that match how human beings actually think and learn.
If you share that view, I have one suggestion: don't make your next step another certification. Make it a new way of looking at the ones you already have.