> We're approaching a state (at least in developed countries) where productivity is so high, that you can literally park your money in 500 of the biggest busine

> We're approaching a state (at least in developed countries) where productivity is so high, that you can literally park your money in 500 of the biggest businesses and you're almost guaranteed a 7% annual return (if you hold stocks for the long term). I think this has been true for a long time. Maybe even the whole 20th century, if you average out the Depression. I think the main difference in the last 20 or 30 years is that the instruments for making that investment have gotten dirt cheap, in percentage terms.