Stablecoins are a cryptocurrency that conforms to the ERC-20 standard[1] so they can be used in blockchain applications that want something that implements that

Stablecoins are a cryptocurrency that conforms to the ERC-20 standard[1] so they can be used in blockchain applications that want something that implements that. USDC/USDT are therefore the closest things to USD that can be used in that way. Obviously people differ as to the utility of those applications but that's what the "C" gets you. You can do those things if you want to. Of course there's quite a lot you can do with actual dollars that you can't do with USDC so you give up a lot also. [1] https://ethereum.org/en/developers/docs/standards/tokens/erc-20/ https://ethereum.org/en/developers/docs/standards/tokens/erc...