There probably is going to be society underwater in the future. Shit there could be one, down there right now and we don’t even know. We look for life in stars but never give a second thought about other sentient life in our own ocean. While there may be no chance of that actually being true, we should probably use our resources on trying to find a way of living underwater since that is going to end up happening thanks to global warming. I mean I may not live long enough to see our society underwater, so when I’m dead the first flight I’m booking as an angel is to Atlantis before all the tourists starts to show up.