should the US(and the rest of the world) return to the gold standard? of course since gold and other forms of precious metals is technically and historically the only real type of money.
No that is not at all true. Money was created to eliminate the double coincidence of wants. Money, more specifically M1, is currency in the hands of the public and demand deposits. Many things have been commodity money: oxen, sugar, nails, beer, and yes gold in the form of coins. But today that is not the case. Today money is currency (dollars bills and coins in the U.S.) and demand deposits (checking accounts, NOW accounts, etc.). Today, in the U.S., Gold is not money (M1), Diamonds are not money (and would be a horrible to use and never have been), no commodity is M1.