Question: could we ever live in the ocean

Iain Staniland answered on 5 Nov 2018:

Its is a good question, my thoughts were that people already were living underwater and I was right. Apparently there are three underwater places where people can live for extended periods. All are in the Florida Keys.
Although there are a number of issues, the immense pressure, making oxygen, access to freshwater etc we have the technology available to overcome them. It would be fascinating to live like this for a short period, imagine the things you would see out of your window However I am not sure I could do it for too long, could you?
see: http://www.bbc.com/future/story/20130930-can-we-build-underwater-cities