SlugLife
Contributor
"Well actually, there's a buddy with you!" We're not stupid. The concept "every dive is a solo (self-reliant) dive, even when diving with others" primarily refers to mentality, safety, preparation, and pragmatism.BS. Yes, you need to be self-reliant and responsible to be a good teammate, but that doesn't make a team dive a solo dive. The fact that you need the same skills to dive safely whether you are in a team or solo does not make one like the other.
- Pragmatism: A dive-buddy's practical purpose is redundancy; but they're also an unreliable redundancy. For many reasons your buddy may not be able to assist in an emergency. Scroll up to my previous post, there's plenty of details and examples there.
- Safety: Your #1 priority is your own safety, and your buddy's #1 priority is theirs. Perhaps the most important point emphasized in dive-rescue courses, is to never endanger yourself to rescue another diver. If the needs-rescue diver is panicking dangerously, or you don't have enough air for the both of you, your buddy better hope they can successfully complete and survive a CESA. Would you rather die in that scenario, or have the means of self "rescue."
- Mentality & Preparation: One's mentality and preparation approaches every dive, as if the redundancy provided by a dive-buddy doesn't count. One should be able to self-rescue and handle nearly any anticipatable emergency without assistance. OOA, entanglements, getting lost, BCD failure, other equipment issues/loss/failure, currents, etc. What those emergencies might be, or how to handle them is a long discussion (and somewhat situational).
- Bonus: If you do need to rescue or assist another diver, you'll be that much better prepared. Much of the redundancy can be shared with a buddy, or be used to assist. Similarly, your buddy might be a backup-backup plan in the rare scenario your redundancy also fails at the same time.
That's great! Ideally, the dive-buddy is the 3rd or 4th "line of defense" when your 1st (primary) and 2nd (redundancy) and possibly 3rd (redundant redundancy) all fail at the same time.
"...but I have a dive buddy!"
This is only a recommendation, I don't tell anyone else how to dive. Anyone who follows this advice will be safer. But feel free to ditch the redundant air, cutting-devices, etc and in an emergency have your life in your dive-buddy's hands. That's how most diver are taught on OW. However, for everyone else who wants to "level up" their safety, you can start by thinking about "hmmm, what if my insta-buddy can't help?"