alfredo
It properly is a quicker workaround - to we have other tools in the shed, to make spaceflight a possibility - but even then, it is a few challenges to be worked out before we can build colonies at the sea bed - quite a few challenges.. But it could at least be made possible, as we know the basic about building underwater constructions - and I suspect if we was willing to it, a lot of new knowledge, and resources will be available the next 10 or 20 year - to build if not big city's under the sea, so at least colonies who can to a degree exist as single unities, and the inhabitants live and survive on their own.. Or at least to a degree on their own.. In 50 or 60 year, it could exist city's under sea, who is maybe a couple of hundreds of thousands people large - and they maybe have a economy on their own, down there.. Or at least, it could be used to discover new forms of energy.. The possibilities in a colony underwater is endless - it is just the fantasy who in the end, give us the possibilities - as it is if we ever decide to go into space in a grown up way - and use the resources necessary to build up a future out there.. If we had been used the military spending to push into space programs alone, I guess I could have traveled to Moon on Holiday by now.. At least it was what they promised could be the possibility by 1990 in 1969...
But then again in 1969, the possibility of having a PC in your living room, and connected to something called internet was also far fetched - and we are on internet..