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It was 1997, the waters off southern Japan were a frigid 52 degrees fahrenheit; my face hit the cold water and I immediately started the rapid depletion of the precious air in my scuba cylinder. Everyone else was calm and relaxed underwater. I would signal, after 20 minutes, that I was down to 700 psi on my submersible pressure gauge and my dive buddy would look at me bewildered. He showed me his SPG and it still had 2000 psi comfortably sitting in his tank. We slowly ascended to our safety stop and when we got to the surface, the...

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