In the Web2 era, to "trigger" was to set up a conditional action within a centralized automation service. Using platforms like IFTTT or Zapier, a trigger was a specific event, such as receiving an email or posting a photo, that was observed by the platform's private server. This observation would then cause a pre-defined, corresponding action to occur. The entire "if this, then that" logic was executed within a black box, relying on the user to trust the central platform to monitor for the trigger and reliably perform the subsequent task. In the Web3 and Fourth Industrial Revolution (4IR) paradigm, to "trigger" is to provide a verifiable input that directly causes a transparent smart contract to execute. This trigger is not observed by a single company, but is often a piece of real-world data, like a stock price or weather condition, securely delivered to the blockchain by a decentralized oracle network. The trigger and its resulting action are publicly auditable and unstoppable once the conditions of the smart contract are met. This transforms the act of triggering from a private, trust-based command into a public, trustless, and deterministic execution of code.