<ul data-eligibleForWebStory="true">Nick Szabo envisioned smart contracts as self-executing agreements in the 90s.Ethereum's launch in 2015 birthed programmable money, allowing global contract deployment.Current landscape includes multi-chain execution environments and security-focused VMs.Smart contracts work via deterministic execution, VMs processing opcodes with gas fees.Key components include ownership control, upgradeability strategies, and security considerations with audits.