Validator slashing seizes staked collateral for specific protocol violations — not ordinary mistakes. The correlation penalty is the mechanism that matters: it scales with how many validators are slashed simultaneously, making coordinated attacks far more expensive than isolated accidents.

ZK-rollups prove transaction validity up front using cryptographic proofs, enabling faster finality than optimistic rollups without a seven-day withdrawal delay. This post explains the mechanism, the two dominant proof systems, the ZK-EVM compatibility spectrum, and where the constraints actually live.

Optimistic rollups assume transactions are valid by default and let challengers dispute them afterward. Here's the actual mechanism — sequencers, fraud proofs, the 7-day finality window, and where decentralization still falls short.

Optimistic rollups assume transactions are valid by default and let challengers dispute them afterward. Here's the actual mechanism — sequencers, fraud proofs, the 7-day finality window, and where decentralization still falls short.

Rollups process transactions off Ethereum, batch them, and settle compressed data back to the base layer. This post explains the mechanism — sequencing, batching, proof submission, and what determines finality.

Layer 2 moves computation off the base blockchain while inheriting its security. This explains the core mechanism — rollups, data availability, bridge risk — and what's actually changing with Ethereum's rollup-centric roadmap.

Wrapped tokens let assets from one blockchain be used on another. Here's how the locking-and-minting mechanism works, where custodial risk lives, and what's actually changing.

Automated market makers replaced order books with a math formula. Here's how the constant product mechanism actually works, what liquidity provision means, and where the system breaks down.

Crypto borrowing lets you access capital without selling your assets — but the mechanics differ sharply between DeFi and CeFi. This explains how each works, where liquidation risk lives, and what's actually happening when you borrow against crypto.

Crypto lending operates through two structurally different systems — centralized platforms and DeFi protocols. This explains how each mechanism works, where the constraints live, and why the distinction matters.

NFT ownership is a record in a smart contract — not a transfer of the underlying asset, copyright, or file. This explains the mechanism precisely: the ERC-721 token standard, the metadata chain, where constraints live, and what on-chain ownership actually guarantees.

DAO governance runs on token-weighted voting, proposals, quorum thresholds, and timelocked execution. Here's how the mechanism actually works — and where it breaks down.