₿ Crypto & Web3 · Lesson 4 of 9 · 7 min
Stablecoins — Digital Dollars
💵 A stablecoin is crypto that promises to always be worth exactly $1. Always. Forever. No matter what. …That little 'no matter what' is exactly where this lesson gets interesting.
💡 Key idea
Stablecoins are the 'cash' of crypto — where traders park money between trades.
🧠 Why it matters
STABLECOIN = crypto pegged to a stable asset, usually the US dollar. USDC, USDT (Tether), DAI. The idea: get crypto's speed and global reach, without crypto's wild price swings.
🌍 In the real world
🌎 In countries with collapsing currencies (Argentina, Turkey, Venezuela), people now hold USDC instead of their local money. It's digital dollar access without needing a US bank account.
📌 Takeaways
- Pegged to $1 (or another asset)
- USDC + USDT are the biggest
- Used as 'cash' inside crypto trading
📖 Terms in this lesson
Stablecoin: A crypto token designed to stay worth exactly one dollar.
✅ Test yourself
What's a stablecoin pegged to?
- Bitcoin's price
- A stable asset like the US dollar
- Gold mining stocks
- Random chance
Answer: B · A stable asset like the US dollar
Most stablecoins are pegged 1:1 to the US dollar. Some are pegged to gold, euros, or even baskets of assets.
Why do traders use stablecoins?
- To get rich quick
- To park money between trades without leaving crypto
- To pay taxes
- Stablecoins are illegal
Answer: B · To park money between trades without leaving crypto
Selling crypto for dollars takes time and fees. Selling for a stablecoin = instant, on-chain, ready to redeploy.
Are stablecoins 100% safe?
- Yes, always
- No — some have de-pegged or collapsed before (like UST)
- Only USDT is safe
- Only banks are safer
Answer: B · No — some have de-pegged or collapsed before (like UST)
Algorithmic stablecoins like UST have famously collapsed. Even big ones like USDT face questions. Read about the issuer before holding.
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