Understanding DeFi

Traditional finance rebuilt in code — automated market makers, impermanent loss, stablecoins, over-collateralised lending, oracles, and where the yield actually comes from.

4 units · 16 lessons · 80 min read · plus hands-on practice, at your pace

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What actually happens when a smart contract runs?

Smart Contracts & Composability · 5 min read · practitioner

Start the first lesson

Unit 1 Smart Contracts & Composability

  1. What actually happens when a smart contract runs? 5 min
  2. What does "permissionless" really mean — and what does it not protect you from? 4 min
  3. Why can DeFi protocols plug into each other like Lego bricks? 5 min
  4. If the code is the contract, what happens when the code is wrong? 5 min
Practice Check · Unit 1 A short check · cannot be failed Start

Unit 2 AMMs and Liquidity

  1. How can a pool of tokens quote a price with no order book? 5 min
  2. Why does a bigger trade get a worse price in the same pool? 5 min
  3. Why can a liquidity provider end up worse off than someone who just held? 5 min
  4. What do fees have to earn before liquidity providing breaks even? 5 min
Practice Check · Unit 2 A short check · cannot be failed Start

Unit 3 Stablecoins & Lending

  1. What is a stablecoin actually pegged to? 5 min
  2. What happened when an algorithmic stablecoin lost its peg? 5 min
  3. Why must you post more collateral than you borrow? 4 min
  4. What is a health factor, and how does a liquidation actually work? 5 min
Practice Check · Unit 3 A short check · cannot be failed Start

Unit 4 Where Yield Comes From

  1. Where does a DeFi yield actually come from? 5 min
  2. Why do the highest advertised APYs decay fastest? 5 min
  3. How does an off-chain price get on-chain — and how is it attacked? 6 min
  4. Understanding DeFi — course checkpoint 6 min
Practice Check · Unit 4 A short check · cannot be failed Start

Last Course exam

One exam, the whole course Unlocks when you have read all 16 lessons

Passing it earns the course certificate.