Bitcoin, taught in order.
Eighteen free courses in five stages, from what money is to the internals of Lightning. Every lesson tells you what you will be able to do, teaches it, then checks it with a quiz or a challenge.
Foundations
What money is, how it broke, and who pays for it.
- Explain the three jobs of money and the properties good money needs
- Say what inflation really does and who gets the new money first
- Tell the 1971 story in two minutes
Understand Bitcoin
What it is, the quick tour, the full picture, and the objections.
- Say what Bitcoin is in one paragraph, and what it is not
- Explain why it has value and why there will never be more than 21 million
- Answer the ten objections you will actually hear
Own it
Buying, wallets, keys and keeping it safe.
- Buy sats the way that fits you, knowing what each route costs
- Set up a wallet and a backup you have tested
- Spot the scams aimed at buyers and at holders
Go deep
How the network, the money rules, the market and the layers really work.
- Follow a transaction from wallet to block to confirmation
- Read the supply schedule, the difficulty and the fee market
- Read price and on-chain data without fooling yourself
- Explain Lightning and why Bitcoin is the only one that matters
Master
Keys and Script, your own node, governance, Lightning internals, taxes and the state.
- Verify everything on your own node
- Read a BIP and judge an upgrade debate
- Explain how a Lightning channel is enforced on-chain
- Plan taxes and inheritance for your stack