Imagine. You are an American worker in the late 1960s. Your salary has tripled in a few decades and you have no debt to repay. After a short stay on the west coast where you took advantage of your first paid holidays, you return home. You park your car in the garage of your house, both paid cash, and you slump in the armchair to read your newspaper. Inside, there is an article that talks about the greatest inventions of the decade: fiber optics, LEDs, weather satellites, pacemakers, internet,...