I have been thinking whether there are analogies to diving since reading the stories about the increasing number of deaths on Everest, but I haven't been able to come up with anything interesting. The factors in the case of Everest seem to be complicity of the tourism-hungry Nepalese government, growing popularity of climbing as a sport, cheaper airfares, and more generally, growing affluence of the middle classes. Rebreathers, DPVs, trimix, etc., and the ability to dive all over the world are now within reach of many divers, yet we haven't really seen a rash of deaths in recent years, have we? It seems to me that, for an endeavor with the potential to kill you easily, the diving world actually regulates itself surprisingly well these days. For all the anecdotes we discuss here on SB, such at that "trust-me trimix dive," not that many involved serious injury or death. However, I suppose if we're considering the past, there were periods in which factors of the day combined to create a rash of deaths. Maybe we're about to see another such period?