What's the importance of having decentralized derivatives like futures, options and swaps, and what are some of the major use cases? Barney is a seasoned trading systems expert and explains how Vega's bespoke protocol and derivatives marketplace, can prevent MEV, have predictable trading fees in bps, margin credit, atomic closeouts, hybrid AMM / order book liquidity, and what's in the roadmap. We discuss the London blockchain ecosystem and how defi and tradfi are converging to benefit people IRL.