Understand decentralized finance the safe way: DEX trading, lending, stablecoins, yield, contracts, bridges — with a safety playbook that keeps beginners a

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Course Instructor

The W3D Team Author

Independent research on blockchain decentralization. Scores and methodology are maintained by the W3D Team.

1 · Core Lessons (CC-BY)

What DeFi Replaces

Every bank service — swapping currency, lending, borrowing, earning interest — exists because strangers need a trusted middleman. DeFi replaces each middle

DEX Trading Masterclass

A decentralized exchange lets you trade from your own wallet — no account, no custody, no permission. This lesson is the complete mechanics: how prices for

Lending and Borrowing

DeFi lending pools (Aave, Compound, MakerDAO) let anyone earn interest on deposits or borrow against collateral — no credit score, just math. Rates float w

Stablecoins Deep Dive

Stablecoins are DeFi’s cash: dollars on-chain for trading, lending, and saving without volatility. But “stable” describes a mechanism, not a guarantee — an

Yield, Staking and Farming: Risks First

Every yield has a source. Lending interest comes from borrowers; staking rewards from issuance and fees; farm emissions from dilution. This lesson teaches

Reading Contracts and Audits

You don’t need to code to do basic contract due diligence. Fifteen minutes on an explorer plus the right checklist filters out most disasters before money

Bridges and Cross-Chain

Value lives on many chains, so bridges move it between them — and bridges are where crypto’s biggest heists happen. Use them with a full understanding of w

The DeFi Safety Playbook

Everything in this path compresses into one operating system. Print this lesson. Follow it until it’s boring — boring is the goal.