Derivative trading? That's something for Wall Street types, right?  Maybe, but it also affects everyone else in ways that are still little appreciated. Futures traders have paralysed the global trade of nickel, a key component in the battery of your neighbour’s Tesla. For a few minutes one trading day during the pandemic, sellers of crude oil were paying buyers to take the stuff, defying the very notion of trading, in an episode straight out of “Alice in Wonderland”. Understanding how this obscure corner of finance works (and what happens when it doesn't) is a key pillar of financial literacy today. If you are a financial markets practitioner, everyday investor, academic, regulator, policy maker or kitchen-table economist, you need to know how financial derivatives really work and be aware of the emerging digital innovations that makes this market the highest stake metaverse.