OP
Grenouille
Registered
This is not in a sunken submarine, we're talking about moving divers. The distance they can reach outside their habitat depends on how much air they have in their tanks. They're exploring wrecks to find the material they need. That's why I figured they'd try to find ways to maximize their O2 levels to reach farther wrecks, and since they can't really make their tanks bigger, I thought they could develop a technique over a long period of time, to breathe and move in a different way so that their body doesn't require as much O2 as they do in normal conditions. It might be a little far-fetched but if you take spiritual techniques, meditation, and a better control of your mind into account, given all that surprises us about the abilities of the human mind and body, I'm still not sold on it being "unbelievable." If you have other arguments, send them my way, I appreciate your help as always, guys!