There is definitely something to be said for survival preparedness, but there is also a great lesson in cooperation, environmental preservation and care, and more.
Every home in the world should be self sustaining where practical and affordable.
From the page: A project 30 years in the making, this tiny off-grid retreat on a coastal island in Maine is almost entirely self-sufficient. Designed and built by Alex Porter for her father, the project features a shed roof and is wrapped in a distinctive blue-grey corrugated skin. Dwell recently profiled the home, which is the only solar-powered retreat on the isolated island - its sustainable power source actually makes life a lot more leisurely, as the family does not need to schlep in fuel to run a noisy generator. They didn't give anything up, as they have all the conveniences of a regular home Ã¢â,¬â but with a view you don't get in an everyday residence.