$ ~/learn ls -la
18 lessons

A structured curriculum for understanding crypto — from what a blockchain actually is, to how DeFi works, to how not to get phished. No hype, no shilling.

$ open glossary →
// 01 · fundamentals
What is Bitcoin?

The first neutral, borderless, non-sovereign digital money — and the network that made it possible.

read → 6 min
// 02 · fundamentals
How blockchains work

A blockchain is a database with an unusual property: no one is in charge, yet everyone agrees on what's true.

read → 7 min
// 03 · security
Wallets, keys & self-custody

'Not your keys, not your coins' — a wallet doesn't hold crypto, it holds the keys that authorize moves on the ledger.

read → 5 min
// 04 · consensus
Proof-of-Work vs Proof-of-Stake

Two different answers to the same question: how do strangers online agree on what's true?

read → 6 min
// 05 · applications
DeFi: decentralized finance

Financial services — lending, trading, insurance — rebuilt as open-source smart contracts anyone can use or fork.

read → 6 min
// 06 · applications
Stablecoins explained

Digital dollars that live on blockchains — the connective tissue between crypto and the real economy.

read → 5 min
// 07 · applications
NFTs beyond the hype

NFTs are a general-purpose primitive for provably unique digital objects — profile pictures were just the first use case.

read → 5 min
// 08 · earning
Staking & yield

Earning yield in crypto is real — but every yield has a source, and you should always know what it is.

read → 5 min
// 09 · security
Security 101

The chain is secure. You are not. Almost every crypto loss comes from human-layer mistakes, not broken cryptography.

read → 5 min
// 10 · markets
Reading crypto charts

A minimum-viable vocabulary for making sense of price action — without pretending to predict it.

read → 5 min
// 11 · ecosystem
Ethereum explained

If Bitcoin is digital gold, Ethereum is a global, programmable computer that anyone can deploy code to.

read → 6 min
// 12 · ecosystem
Layer 2s & rollups

Rollups execute transactions off Ethereum and post proofs back on-chain — cheaper fees, same security.

read → 6 min
// 13 · applications
DAOs & on-chain governance

A DAO is an organization whose rules, treasury, and votes live in smart contracts instead of a legal filing cabinet.

read → 5 min
// 14 · infrastructure
Oracles & bridges

Blockchains can't see the outside world or each other on their own — oracles and bridges are the plumbing that connects them, and the biggest attack surface in crypto.

read → 6 min
// 15 · markets
Tokenomics fundamentals

The price chart shows what's happening now — tokenomics shows what's going to hit the market next.

read → 6 min
// 16 · markets
MEV: the hidden tax

Every block, sophisticated bots front-run, back-run, and sandwich trades — extracting value that would otherwise reach normal users.

read → 5 min
// 17 · practical
Crypto taxes 101

In most jurisdictions crypto is property, not currency — every trade is a taxable event. This is educational, not tax advice.

read → 5 min
// 18 · practical
Evaluating a crypto project

Ninety percent of tokens go to zero. A short checklist will filter out most of them before you ever buy.

read → 6 min