In this video
The Chainlink network is also discussed, which provides reliable tamper-proof inputs and outputs for complex smart contracts on any blockchain. Chainlink’s decentralized oracle network provides the same security guarantees as smart contracts themselves. By allowing multiple Chainlinks to evaluate the same data before it becomes a trigger, we eliminate any one point of failure and maintain the overall value of a smart contract that is highly secure, reliable, and trustworthy.
It also discusses The Lightning Network, which is a “Layer 2” payment protocol that operates on top of a blockchain-based cryptocurrency (like Bitcoin). It enables fast transactions between participating nodes and has been touted as a solution to the Bitcoin scalability problem. It features a peer-to-peer system for making micropayments of cryptocurrency through a network of bidirectional payment channels without delegating custody of funds.