Unstaking crypto isn't instant — the mechanics depend on which protocol you used and how you staked. Ethereum has a withdrawal queue, Cosmos locks for 21 days, Polkadot for 28. This post explains unbonding periods, liquid staking exits, and what to check before you click unstake.

Exiting a liquidity position returns tokens in the current pool ratio, not your entry ratio — and impermanent loss crystallizes at exit. Here's how the mechanic works across v2, v3, and Curve pools.

Slippage tolerance controls how much price deviation your swap will accept before reverting. Set it too low and transactions fail repeatedly. Set it too high and bots can extract value from the gap. Here's how to calibrate it by pool type and context.

Every DeFi swap sits in a public mempool before confirmation. Bots watch that queue and insert trades ahead of yours to profit from the price impact. Here's how the mechanism works and which levers actually reduce exposure.

Gas cost estimation is multiplication: gas units times gas price. This post explains what each number represents, how EIP-1559 changed the fee structure, and how to read the estimate your wallet shows before you confirm.

Impermanent loss measures how much a liquidity position underperforms a simple hold. This post covers the calculation formula, worked examples for common price moves, and how to weigh it against fee income.

Evaluating a liquidity pool for safety means checking four distinct failure modes: exploitable contract code, admin key risk, compromised token contracts, and thin liquidity enabling manipulation. This post maps each risk and the on-chain checks that address them.

A token's smart contract defines the rules: who can mint, whether transfers can be paused, how fees are set. You don't need to be a developer to extract meaningful signal — you need to know where to look.

Testnet faucets distribute valueless test tokens so you can run transactions without spending real money. This post covers which faucets work for Sepolia and other networks, why they have restrictions, and what to do when they're empty.

Testing a transaction isn't one thing — it's three distinct techniques for three different risks. This post breaks down test sends, testnets, and transaction simulation, and what each one actually protects against.

Backing up a wallet means more than writing down the seed phrase. A complete backup covers the seed phrase, any passphrase layered on top, and documentation of account structure — because an incomplete backup can silently leave funds inaccessible.

MetaMask security isn't one problem — it's four distinct problems with different failure modes. This post maps the seed phrase, approval, phishing, and browser layers, and explains what actually changes each risk.