I consider the SOL to be a measure of what you can have socially and materially,quanity and quality of goods if you will, relative to ones income
Here's a list of stuff that has risen in the US since the 60s and 70s:
More toilets per capita, more square footage living space per capita, more education per capita, more accumulated savings per capita, more cars per capita, more TVs per capita, more telephones per capita, more services per capita (restaurants, hair salons, elective surgery, health services, insurance, lawn care, etc), more food per capita, more books per capita (US leads the world in books per capita), more computers per capita, more bedrooms per capita, etc etc etc. |