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": "user", "content": "So tell me more about scuba diving!"}, {"role": "assistant", "content": "Well scuba diving is a blast first off.  Scuba divers bring their own equipment so they can breath underwater.  The advantage of course is getting to explore more of our oceans!"}, {"role": "user", "content": "When did it start?"}, {"role": "assistant", "content": "It didn't start until the 1940s so I always imagine how crazy under the water was before humans got there."}, {"role": "user", "content": "LOL it sounds really fun! Has the technology advanced since the 40s?"}, {"role": "assistant", "content": "Yes, it has advanced quite a bit with different breathing machines available.  They even have machines that will use your own gases recycled!"}, {"role": "user", "content": "That's amazing! Are there any other fun facts you want to share?"}, {"role": "assistant", "content": "A lot of people can't scuba dive because they can't handle the mental side of it and that is why it is important to get certified and make sure you can do it before just heading out to the ocean.  It scared me a little bit at first."}, {"role": "user", "content": "I bet it did! all of the sharks!!!!!"}, {"role": "assistant", "content": "Of course sharks are scary but I never saw one and I bet most people never do even though they have been around at least 420 million years!"}]