# The Digital Dollars

**Published by:** [Lista DAO](https://blog.lista.org/)
**Published on:** 2026-06-17
**Categories:** defi, education, stablecoin, bnb, lista
**URL:** https://blog.lista.org/the-digital-dollars

## Content

"If I'm going to actually use any of this," I said, "I can't use Ethereum for it." Moolah looked up from her latte. We were back at the bench - it had dried out enough to sit on again - and the pond was starting to develop a faint skin of ice at the edges. "Go on." "The price moves. I watched it drop six percent on Thursday. I can't save for rent in something that loses a sixth of its value over a weekend. I can't pay Dev back for dinner in it. I can't do any of the actual money things. So either this whole thing is a toy for people who don't have rent to pay, or there's a piece I haven't been shown yet." Dev leaned back with the satisfied air of someone who had been waiting for exactly this question. "Stablecoins," he said. "Hush," said Moolah, mildly. "But yes. Stablecoins. The missing piece that makes DeFi useful as money instead of just as a casino. A stablecoin is a token on the blockchain designed to hold a steady value - almost always one US dollar. If USDC is a dollar this morning, it will be a dollar this afternoon, and a dollar next year." "How?" "There are several different answers. And whether you trust the answer matters a great deal." She fished a pebble out of her fur, examined it, and put it back. I had stopped finding this strange three weeks ago. "First kind. Fiat-backed. A company holds real US dollars in a real bank account - or in US Treasuries, which are close enough - and issues one stablecoin for every dollar it holds. You give them a dollar, they mint you a token. You give back a token, they send you a dollar. The token is a receipt. The currency sits in the vault." "Like a cloakroom ticket." Moolah's whiskers twitched with pleasure. "Exactly. The coat is in the cloakroom. The ticket is in your pocket. You can pass the ticket to someone else, and now they can claim the coat. The ticket isn't the coat. The ticket is a promise, from the cloakroom, that the coat is there. The biggest examples are USDC and USDT. Tens of billions of dollars each, circulating on the blockchain as small digital receipts for real dollars in real bank accounts." "Who do I have to trust?" "The company. The bank. The auditor who checks the bank. The regulator who checks the auditor. All the way down. It's more trust than holding a dollar bill, but less than you might think. A dollar bill is backed by the US government. A USDC is backed by a company that is backed by a bank that is backed by the US government. There is one extra link in the chain, and extra links can break." "Okay. What's the second kind?" "Crypto-backed. Here, instead of a company holding real dollars, you lock up other crypto as collateral and mint a stablecoin against it. The most famous is DAI. You put in a hundred and fifty dollars of ether, you get out a hundred DAI. If the ether drops in value, the system automatically sells some of your collateral to keep the DAI fully backed. It's messy but it doesn't require trusting any one company." "It requires trusting the code." "Yes. And trusting that the collateral doesn't fall faster than the system can react. Which has, on occasion, been an interesting problem." She gave me a significant look. I wrote BLACK THURSDAY in my notebook with a question mark next to it, because I had no idea what she meant but I could feel a story coming. "Third kind." Her whiskers went still. "The third kind is called algorithmic. No collateral. Or almost none. Instead, the system uses clever incentives to keep the price at a dollar - if the price goes above, it prints more coins to push it down. If it falls below, it buys some back to push it up. The whole thing is balanced on the word of the algorithm." "That sounds -" "It sounds like a one-legged chair propped up by promising it can stand. Yes. Some versions of it have worked, for a while. Many have not. We will be coming back to this in the spring, when I tell you about a coin called Luna, and a very bad weekend in May of 2022." The ominous tone sat between us for a second. "Why do stablecoins matter?" I asked. "Because they are the plumbing. Almost every interesting thing in DeFi runs on stablecoins. Lending, trading, savings, payments - none of it works if the unit of account keeps moving. You can't run a business priced in ether any more than you could run one priced in gold nuggets. You need something boring but steady. Stablecoins are DeFi's way of being boring in a loud room." Dev stretched. "Also, if you're in Argentina, or Turkey, or Nigeria, and your currency loses forty percent a year -" "Stablecoins are a life raft," Moolah finished. "A way to hold digital dollars without an American bank account. For some of the people using this system, stablecoin isn’t an alt asset they hold for diversity. It’s about their survival. I've watched this story before, in other centuries, with other technologies. People have always found ways to hold a stabler currency than their government offers. This is just the newest way." I wrote in the notebook. Three kinds. Cloakroom, collateral, algorithm. The first trusts a company. The second trusts code and collateral. The third trusts a promise. Under it, I added: not all stablecoins are equally stable. Moolah looked over my shoulder and nodded slowly. "Write it twice," she said.

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