It is funny this is from an Investment Strategy site where the strategies it is explaining are taking advantage of the system (how she/he manages the portfolio).

What a paradox is this capitalism, the system is supposedly trying to "help" people, but some people is trying to make money out of it while some others need it to be alive and nobody can live without the others. And loop.

Besides that as time goes by it seems more clear to me this is obviously non sustainable, although I might be wrong as I have been thinking this for years and keeps working :)