Lending, exchange, derivatives, yield — operating without banks, brokers, or clearing houses. The middle of every traditional financial transaction replaced by a smart contract anyone can read, anyone can call.
DeFi is finance with the trust assumptions made legible. Hayden Adams shipped Uniswap V1 in November 2018 with a 300-line constant-product AMM and changed how liquidity works. Stani built Aave (formerly ETHLend) into the canonical money market. Rune Christensen's MakerDAO gave the world the first credibly decentralized stablecoin, then rebranded as Sky. Michael Egorov's Curve solved stablecoin AMMs with the StableSwap invariant and accidentally created the Curve Wars — Convex, Yearn, and Frax fighting for veCRV bribes for two years.
DeFi Summer 2020 is the cultural reference point. Compound launched COMP, yield farming was born, TVL went from $1B to $15B in three months, and food coins (SUSHI, YAM, KIMCHI) ate the timeline. The Sushi vampire attack on Uniswap is the canonical case study in mercenary liquidity. Then Terra/Luna in May 2022 — Anchor's 20 percent yield was structurally broken and took $40B with it. Then FTX in November 2022. The survivors got more conservative and more competent. The losers got rugged.
What's alive now is a different shape. Hyperliquid's perp DEX — Jeff Yan's team — is doing more volume than most CEXs and ran a fair-launch token in November 2024 that became the Solana-vs-Ethereum debate of 2025. Pendle owns yield tokenization. Morpho rebuilt money markets as isolated, immutable vaults. Ethena's USDe is a basis-trade-backed synthetic dollar. The frontier moved from yield farming to capital efficiency and structured products. It looks more like fixed income every cycle.
Decentralised finance is not an industry — it is an open financial system being built in public, with money as the test case. Every primitive — lending, exchange, derivatives, insurance — is being re-implemented as transparent code rather than opaque counterparty. The protocols compose. The composability is the product.Aavenomics paper →
DeFi works because a small number of primitives compose. An AMM lets anyone make a market. A money market lets anyone lend or borrow against collateral with a health factor that liquidates predictably. A perpetual exchange replicates the largest market in TradFi (FX) on-chain. A CDP lets users mint a stablecoin against collateral they keep. Yield tokenization splits an interest-bearing asset into principal and yield. Vote-escrow turns governance into a directed flow of emissions. Six pieces below.
Hayden Adams' Uniswap V1 (November 2018) shipped the constant-product formula x*y=k as a working market maker — no order book, no counterparty, just a reserve curve. V2 added arbitrary token pairs and TWAP oracles. V3 (May 2021) introduced concentrated liquidity, letting LPs allocate capital to specific price ranges and earning more fees per dollar — at the cost of impermanent loss exposure when price exits the range. V4 added hooks for custom pool logic. The single most-copied primitive in DeFi.
Aave's pooled liquidity model: depositors earn variable interest, borrowers post overcollateralized positions, an interest-rate curve adjusts to utilization. Health factor — collateral value times liquidation threshold divided by debt — determines liquidation eligibility; below 1, anyone can repay debt and seize collateral at a discount. Stani Kulechov's ETHLend rebranded to Aave in 2020. V3 added isolation mode, efficiency mode, and cross-chain portals. The model scaled to tens of billions in deposits and a decade of liquidations without a protocol-level insolvency.
Hyperliquid runs a fully on-chain central limit order book with sub-second matching on its own L1. No AMM smoothing, no funding-rate proxy — actual order book, actual maker/taker fees, actual liquidations. Jeff Yan's team launched mainnet 2023 and overtook the L1-perp leaderboard within 18 months on volumes. The HLP vault lets users provide market-making liquidity passively. Showed that perps don't have to be vAMMs (GMX, dYdX v3) — order books work on-chain when latency is solved at the consensus layer.
Rune Christensen's MakerDAO shipped Single-Collateral DAI in December 2017 — lock ETH in a Vault, mint DAI against it, pay a stability fee, get liquidated if the collateral ratio falls below the threshold. Multi-Collateral DAI (2019) opened up to wBTC, USDC, RWAs. The 2024 rebrand to Sky introduced USDS and SKY. The CDP primitive — overcollateralized, redeemable, governance-managed — is the oldest still-working stablecoin design in crypto. Liquidation auctions enforce the peg without external counterparties.
Pendle splits an interest-bearing token into Principal Token (PT) and Yield Token (YT). PT redeems for the underlying at maturity — buying PT below par is a fixed-yield trade. YT captures all yield until maturity — long YT is leveraged exposure to rates. TN Lee's team turned this into a DeFi-native fixed-income market across stETH, sUSDe, eETH, USDS. Maturity-dated, no perpetual rollover, real duration. Became the venue where points-and-yield speculators express directional views without holding spot.
Michael Egorov's Curve Finance shipped vote-escrowed CRV (veCRV) in 2020 — lock CRV for up to four years, get governance weight that directs emissions to specific liquidity pools. Convex (CVX) abstracted the lockup and aggregated voting power. The Curve Wars (2021-22) saw protocols (Frax, Mochi, then everyone) bribe veCRV holders for emissions on their stablecoin pools. Inspired ve-CAKE, ve-AERO, vlAURA. Made governance into a directed market — emissions follow bribes, capital follows emissions.
Conviction is stated as conviction; you decide what to do with it. Tiers below — Core, Conviction, Watch, Speculative — reflect how much of FRQNCY's attention each project currently earns, not a recommendation to buy.
Conviction is theatre without practice. Five steps that turn the thesis above into something the body actually does, not just something the mind agrees with.
Pick a stable-stable pool first. Then a volatile pair. Track LP value vs hold for two weeks. The math becomes intuitive.
Set a conservative LTV. Watch the health factor through one volatile day. Repay early. The discipline is the lesson.
Buy a PT (principal token) and lock in fixed yield. Feel the duration risk. Notice how it rhymes with TradFi fixed income.
Use CowSwap or 1inch Fusion. Read the order flow. The mempool is a public market for your trade.
Concentrated liquidity changed everything. The math is graspable in an afternoon and explains half of DeFi 2024.
The Crypto hub is the index of all sectors and the freedom-technology frame they share. The Fund is what happens when the same conviction gets put to work on behalf of the network.
DeFi is a public financial system with the trust assumptions visible.
Yield without risk is yield you do not understand.
Read the contract. Verify the invariant. Trust the math, not the marketing.
Permissionless is the feature.
FRQNCY · Crypto