Seriously,'Self Sufficiency' was just a book title, inspirational to many yes,but profitable definetly.It put forward a life style that thousands of people in rural areas were living and continue to live.They never provided everything for themselves,they traded and still trade with their neighbours ,it struck a chord with some people living an urban existence and some were encouraged to sell up and move to the land some sucessfully,some not.The people I have most time for are those who grow as much as poss of their own stuff in a window box,allotment,small garden etc. they understand self-reliance.