A Smart Contract is not a legal document in the traditional sense; it is a program stored on a blockchain that runs when predetermined conditions are met.
Think of it like a digital vending machine. In a traditional contract, you pay a lawyer or an escrow agent to ensure both parties follow through. With a smart contract, the code is the escrow. For example, in a rental agreement, the contract could automatically release a digital door key to a tenant the moment the security deposit is confirmed on the blockchain. By removing the “middleman,” smart contracts reduce costs, eliminate human error, and ensure that “code is law.”