don't throw your pearls before swine, so I understand MHK's reticence to post more so that you can twist it. Been there, done that, got the t-shirt, and don't ever want to go back!
As for computers and diving, I know many people who have a phobia of depending on electronics. I deal with it all of the time with my users. As long as they are in control things are great... they pound keys and get results. Once they leave their comfort zone, they prefer not to depend on them.
Is this sane? It doesn't have to be. It's a preference. They choose to not rely on electronics IN the water where electronics have their worst record. One little drop of invasive sea water and poof up goes the magic smoke. And we all know that once an electronic device loses it's magic smoke, it ceases to operate.
IOW, they believe the seal around their brain to be far superior to that found in any watch or computer. I can understand that easily. I am just glad that Microsoft did not design the OS for my Cobra!
There are lot of other reasons... like understanding your dive better, being more in control of your dive, but I get the idea that you just want to "win". It has ceased to be an exchange of ideas and has degenerated into some third rate debate. You are not interested in understanding, but rather in "proving your point" and so the debate has become one sided. Single handedly you have squelched all reasonable dialogue because you just HAVE to be right. Been there, done that, got the t-shirt, and don't ever want to go back!
We are, as a group, tired of your drivel. You asked your questions and no one cares to "feed the troll". Deal with it, because thats life. You get silence only because you earned it.