What Is Bitcoin?
Bitcoin introduced — what it is, how it works, the 21 million limit, mining, decentralization, whether it can be stopped, and why it's in a league of its own.
Bitcoin in One Sentence
Decentralized digital money with a fixed supply, controlled by no one.
The Origin — Satoshi and the 2008 Crisis
An anonymous creator, a nine-page document, and a message about bank bailouts.
The 21 Million Limit
Why Bitcoin's fixed supply is the most important thing about it.
The Shared Ledger — How Bitcoin Works
How Bitcoin's record-keeping works — a notebook everyone has a copy of.
What Is Mining, Really?
Mining converts real energy into cryptographic proof to secure the network.
No One Controls Bitcoin
Decentralization in practice — no government, company, or person can change the rules.
Can Bitcoin Be Stopped?
Bans have been tried. They don't work.
How to Think About Bitcoin
Not an investment — a savings technology.
Bitcoin vs. Crypto
Bitcoin is to crypto what gold is to Beanie Babies. There is no second best.
Bitcoin 101 — Module 3 Recap
Full recap — and the question that leads to Module 4.