🟠 Digital Gold

21 million. Ever. That changes everything.

Lesson 5 of 7 in Fix Your Money (classic) · about 3 minutes · free

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What Bitcoin actually is

Strip away the jargon and Bitcoin is simple:

Money with a fixed supply that no one can change, running on a network no one can shut off.

There will only ever be 21,000,000 bitcoin. Not approximately. Exactly. The limit is enforced by math and thousands of independent computers — not by a promise.

Quick check: How many bitcoin will ever exist?

  1. 21 million ✓
  2. 100 billion, like dollars
  3. Unlimited, they print more when needed

21 million, and over 19.7 million are already out there. Compare that to dollars: no cap, and trillions added in your lifetime. Scarcity is Bitcoin’s entire point.

Grade it with your scorecard

Remember the six properties?

  • Scarce: 21M cap — best score in history ✅
  • Durable: digital, can’t rot ✅
  • Portable: send billions across the world in minutes ✅
  • Divisible: each coin splits into 100,000,000 "sats" ✅
  • Fungible: every sat equals every other ✅
  • Verifiable: anyone can check the ledger ✅

Gold’s scarcity + digital portability. That’s why they call it digital gold.

Quick check: You don’t need a whole bitcoin. What’s the smallest unit called?

  1. A satoshi ("sat") — 1/100,000,000 of a bitcoin ✓
  2. A bitcent
  3. A nugget

Named after Bitcoin’s creator, Satoshi Nakamoto. "I can’t afford a bitcoin" is like saying "I can’t afford a kilometer" — you buy it in meters. Most people stack sats.

Quick check: Why do savers care about a fixed supply?

  1. It makes the logo cooler
  2. No one can dilute their savings by creating more ✓
  3. Fixed supply means fixed price

It’s the seashell lesson, solved: for the first time, money whose supply *cannot* be inflated by anyone — king, bank, or programmer. Your slice of the pie stays your slice.