Nonsense, those investopedia morons have no idea what money is. Bouvier's dict. defines them as:
MONEY. Gold, silver, and some other less precious metals, in the progress of civilization and commerce, have become the common standards of value; in order to avoid the delay and inconvenience of regulating their weight and quality whenever passed, the governments of the civilized world have caused them to be manufactured in certain portions, and marked with a Stamp which attests their value; this is called money. 1 Inst. 207; 1 Hale's Hist. 188; 1 Pardess. n. 22; Dom. Lois civ. liv. prel. t. 3, s. 2, n. 6.
The US government cannot "create" money which is gold and silver but is limited to coining money to make legal tender lawful money. The government cannot create gold or silver but can make legal tender lawful money from it. In other words, the US gov't CANNOT CREATE ANY MONEY. Money is something of value or redeemable in value and gov't can't create value.
And tresury notes and bonds aren't lawful money since they even AREN'T currency.
"Money: In usual and ordinary acceptation it means coins and paper currency used as circulating medium of exchange, and does not embrace notes, bonds, evidences of debt, or other personal or real estate. Lane v. Railey, 280 Ky. 319, 133 S.W.2d 74, 79, 81."
[Black's Law Dictionary, Sixth Edition, p. 1005]
So Federal Reserve Notes (FRN) are not "money", but they are "currency" from a legal perspective. And let's not forget that at least until 1963 FRns were redeemable in lawful money, so OBVIOUSLY they weren't lawful money.