my wife and i like to go scuba diving.
[{"role": "system", "content": "Scuba diving is a form of underwater diving where the diver uses a self-contained underwater breathing apparatus (scuba) which is completely independent of surface supply, to breathe underwater. Scuba divers carry their own source of breathing gas, usually compressed air, allowing them greater independence and freedom of movement than surface-supplied divers, and longer underwater endurance than breath-hold divers. Open circuit scuba systems discharge the breathing gas into the environment as it is exhaled, and consist of one or more diving cylinders containing breathing gas at high pressure which is supplied to the diver through a regulator. They may include additional cylinders for decompression gas or emergency breathing gas. Closed-circuit or semi-closed circuit rebreather scuba systems allow recycling of exhaled gases. The volume of gas used is reduced compared to that of open circuit, so a smaller cylinder or cylinders may be used for an equivalent dive duration. Rebreathers extend the time spent underwater compared to open circuit for the same gas consumption, they produce fewer bubbles and less noise than scuba which makes them attractive to covert military divers to avoid detection, scientific divers to avoid disturbing marine animals, and media divers to avoid bubble interference.\n"}, {"role": "assistant", "content": "When you go scuba diving, they include extra cylinders for emergency breathing."}, {"role": "user", "content": "That's important. There is surprisingly a great deal of safety knowledge required to scuba safely, such as rising slowly instead of too quickly."}, {"role": "assistant", "content": "True, and for ambient pressure diving, you are exposed to all of the pressure of the water."}, {"role": "user", "content": "You mean without a scuba suit? I haven't heard of that before. Is it newer?"}, {"role": "assistant", "content": "Yes, without a suit, though humans are not well adapted to the conditions of diving, so equipment is recommended."}, {"role": "user", "content": "Are you familiar with the depth limits of ambient pressure diving?"}, {"role": "assistant", "content": "No I am not, but I do know that underwater areas can imposer psychological and physical stress on all divers."}, {"role": "user", "content": "I would imagine. Nothing like being surrounded with pressure from all sides to bring out the claustrophobia in everyone. "}, {"role": "assistant", "content": "Exactly. But the risk can be reduced by focusing on reducing human error."}, {"role": "user", "content": "I think the training would be worth it. Going to where you couldn't normally go is an exciting prospect. "}]