ZK tech is the future of Ethereum, but the math and theory behind it are really complex. This talk will be focused both on how zk proofs actually work on-chain, and tangible differences between zk projects deployed on main-chain Ethereum. There's a seldom tread place between 'where's waldo' basics and brilliant PHD's inventing new Plonk constructions (with new Plonk names). Let's take a journey there and talk about what ZK does practically.