About this tag

DeFi runs on smart contracts that do what they are written to do, with no discretion and no negotiation. A lending position below its health threshold is liquidated because the code says so. A swap sitting in a public mempool is readable because the chain broadcasts it. Most of what looks like chaos on-chain is a set of mechanical rules executing exactly as designed, faster than any human can react.

The mempool is where a lot of this becomes visible. Before a transaction confirms, it sits in a public queue that any node can read. MEV bots do exactly that - they parse pending swaps, calculate expected price impact, and insert their own transactions before or around the original. The slippage tolerance a trader sets is effectively the maximum the bot can extract and still let the trade succeed. This is not an edge case; it is a structural feature of how block ordering works.

This tag collects notes on the protocol layer of decentralized finance. How MEV extraction shapes the real cost of on-chain execution. How governance tokens behave in practice - concentrated among early holders and funds rather than distributed across users. Why exploits cluster around shared dependencies, and how the same vulnerability recurs across forks of the same codebase. How stablecoin infrastructure behaves when redemption pressure builds and the peg mechanism hits its limits.

The framing is mechanical, not promotional. DeFi is not treated here as an ideology or an investment thesis - it is treated as a set of protocols with observable incentive structures. Notes document where the rules create extractable value, where governance diverges from its stated design, and what on-chain data shows after a protocol stress event. Read it as observation, not as endorsement of any particular approach.