Crypto currencies have been declining in dollar price lately. Some “coins,” such as Terra and Luna have completely imploded, wiping out the savings of those speculators. Terra (aka UST) was supposedly backed 1:1 with dollars. It was used to back Luna. Terra was not really backed 1:1 and defaulted when more people wanted dollars than Terra had backing it. Tether is a crypto that is supposedly backed 1:1 with dollars. It is used to back several, many, or all cryptos- including Bitcoin. If Tether implodes, the crypto market may implode.