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> On 29 Jun 1996, Michael Menduno wrote: > > > My understanding from talking to deco-guys like Hamilton, Vann, & others is > > that we really don't know the physiology. We are relying on RWH-maxim, what > > works, works. M2 > > Michael, > > That's fine as long as it does work. We do lotes of things on an empiric > basis - like eat oysters for example. Most of the time everything is fine. > Then someone gets into a situation where the new unknown law applies > (Murphy's) and bites us on the ass. Problem is a few bitten asses and > everyone is cancelling insurance policies or at least not renewing them. > That to me is the most likely result of pushing the envelope by using the > customer as a crash-test dummy. In medical research we call this "not > sufficiently informing the patient" In law they call it big bucks. That's the risk we take everytime we go diving - that we may be bitten on the ass. Unless you were the test subject of some lenghty decompression study, or you have done a lot of dives and have paid close attention to subtle symptoms, then you can't extrapolate existing models or deco schemes to your own diving practices with 100% certainty. Mike is right about the opinions of the guys who know. It's enlightening that, as with many aspects of science, the more a researcher actually knows about what's going on, the more he or she tends to say, "We don't really know what's going on." > Maybe, just maybe out there are the answers we need. I've been given a > leadt on a navy technical document which may have some of them. More later > when I get a copy. I'm always interested to read more studies, but the more I read, the clearer it becomes that chaotic processes are involved, which means that the more extreme the exposure, the less predictable the probability of DCI; both within and between individuals. I think we can do better than we do now, especially if we understand more about bubble physics. But I have to tell you that I am dubious that the answers we really need are actually "out there". Aloha, Rich
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