Testnet is a blockchain network identical to the main network used for testing and experimenting with new features. These testnets allow developers to find potential network issues and errors and fix them before deploying them on the mainnet. 

Smart accounts are smart contract-controlled digital wallets powered by the ERC-4337 token standard.

One of the major challenges that crypto users face is the dependency on external wallets for transactions. The switch between multiple apps and wallet creation causes inconvenience for early users, and here, embedded wallets emerge as an ideal solution.

The Maximum Extractable Value (MEV), formerly 'Miner Extractable Value,' is the lesser-spoken ghost lurking in theDeFi space.