This sounds like good advice "The best way to protect your wealth from the ravages of inflation is to invest in a tangible asset whose supply cannot be increased at the same rate as the currency it is being measured in. Even better is to invest in an asset with growing demand and limited supply whose intrinsic value is increasing."
Its the growth part of the stock market, only problem is the broker dealers need reigned in from creating artificial supply by desking orders to buy and naked shorting the cover.
study the stock issuance laws and you will quickly discover, the Supply of stock issuance is very much a controlled world. Only problem is the systems administering transactions are daily breaking these laws. to the advantage of the few, at the expense of the many.