The four pillars of wealth have remained constant over time; Stocks, Bonds, Real Estate, and Gold. Barring the use of fiat currency, i.e. cash, for intermediate transactions, the world's wealthy have consistently built, stored, and extracted their wealth from those four pillars. Go and do likewise financial farmers; the means and methods vary, the intricacies differ, and the medium may change, but make no doubt about it, those pillars have remained constant bastions of wealth over time.
