I have always wondered, when would be the day that we branch out into the Ocean for our homes. Afterall, 2/3 of the world is a body of ocean. I have thought about the pros and the cons and to be completely honest, with over population hitting record heights, its going to be too soon before we are living ontop of each other. Anyway, it would be my dream to live under the ocean. Check this out: http://www.poseidonresorts.com/poseidon_main.html
If you are interested in more 21st Century living expectations, have a look here: http://www.spiegel.de/fotostrecke/fotostrecke-36923.html