> I also don't buy the idea that it's possible to utilize only ~10-20 years of high productivity from an average person to sustain that person perpetually. Che

> I also don't buy the idea that it's possible to utilize only ~10-20 years of high productivity from an average person to sustain that person perpetually. Check out earlyretirementextreme.com The author shows how it can be done in 5 years on a sub-$100k salary. The catch though is that he doesn't have children. With dependents, it would probably be more like 10 years.