Why stablecoins matter more than Bitcoin for beginners
Bitcoin can move 10% in a day, which makes it a poor unit for pricing, parking profits, or moving money between platforms. The market's answer is the stablecoin: a token pegged to the US dollar that moves freely on blockchains. In most of Asia, trading pairs are quoted in USDT, profits are taken in stablecoins, and funds travel between exchanges as stablecoins. Understanding them is step one.
Fiat-backed: USDT and USDC
The issuer claims to hold one dollar of reserves (cash and short-term US Treasuries) for every token issued — a dollar depositary receipt, effectively.
- USDT (Tether): the largest and most liquid by far, especially across Asia. Its reserve transparency has been questioned for years; it publishes attestations rather than full audits.
- USDC (Circle): stronger on transparency and US regulatory alignment, with monthly reserve reports.
The risks are real but specific: issuer insolvency or reserve shortfalls (counterparty risk), and the issuer's ability to freeze addresses (centralization risk). In 2023, USDC briefly depegged to about $0.87 when a bank holding part of its reserves failed — it recovered fully, but the episode is the best illustration that "stable" describes the target, not a guarantee.
Crypto-collateralized: DAI
DAI is minted against overcollateralized crypto locked in smart contracts (e.g., $150+ of ETH backing $100 of DAI), with automatic liquidations protecting the peg. More decentralized and fully verifiable on-chain; less capital-efficient, and exposed to cascading liquidations in a crash.
Algorithmic: a closed case
UST — once a top-ten asset — collapsed to zero within a week in 2022, taking the entire Luna ecosystem with it. The lesson is already written in history: a stablecoin with no real reserves offering high "guaranteed" yields is a countdown timer. Walk away.
Practical rules for using stablecoins
- Stick to the majors: USDT for liquidity, USDC for transparency.
- Mind the network. The same USDT exists on multiple chains (Ethereum, Tron, Solana…). Sending on the wrong network is one of the most common ways beginners lose funds — always match the chain on both sides, and send a small test amount first.
- Stablecoins remove price volatility, not platform risk. An exchange holding your USDT can still fail.
- Be deeply skeptical of stablecoin "savings" products paying far above short-term US Treasury yields — if the source of the yield can't be explained, your principal is the yield.