Or, to put it succinctly, this statement,
is pure baloney.
The NOAA tables are a very useful tool for "new" divers (i.e. the ones that don't have thousands of hours of personal experience to inform their planning) to use in planning "safe" dives. Do the tables say that, if you stay within their limits you are 100% likely to NOT have a CNS hit? No. They do not give you a 100% guarantee on anything. But, when followed, they do offer a very high percentage chance of no CNS hit. 96%? 98%? Somewhere up there.
They may be of no use to YOU, but they are absolutely useful to the diving community.
Regardless of where the data came from, it’s not a useful tool.
is pure baloney.
The NOAA tables are a very useful tool for "new" divers (i.e. the ones that don't have thousands of hours of personal experience to inform their planning) to use in planning "safe" dives. Do the tables say that, if you stay within their limits you are 100% likely to NOT have a CNS hit? No. They do not give you a 100% guarantee on anything. But, when followed, they do offer a very high percentage chance of no CNS hit. 96%? 98%? Somewhere up there.
They may be of no use to YOU, but they are absolutely useful to the diving community.