There are no statistics that show or demonstrate solo to be anymore dangerous than buddy diving. It is often used as a "statistic" when there is an accident after a buddy team that for whatever reason split up/separated. The resulting accident is then used as anecdotal proof that solo diving is dangerous. Quite the contrary, and that is poor science BTW, the only thing demonstrated there is that poorly trained buddy divers who were not prepared to exercise good buddy skills were even less prepared to solo dive.
Solo diving is not (the same as) continuing to dive after you lost your buddy and you all know that. That is the result of a buddy system failure and poor planning and even worse training and possible carelessness that results in two unprepared divers having an accident. So, as so often happens, putting that mark on the Solo ledger, it should rest squarely on the Buddy ledger.
We can create scenarios, giant octopus, gill nets from Hell, rabid manatees as reasons that Solo is too dangerous for mere mortals. Fine, in that case all I can say is, I am Nemrod, underwater demigod, clearly then your rules do not apply to me. And while on the subject, safety is way overrated.
The pursuit of absolute safety in modern society has become unhealthy. It has become an excuse or reason not to undertake something (grand) rather than as a tool to undertake those things with some reasonable chance for success.
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