Liam Horne is a developer, decentralization expert, and an open source entrepreneur with a focus on state channels. L4 and Counterfactual have released a new development playground that lets software engineers learn and play with state channels right from their browser. Liam gives us insights on what it's taken to get to this point, where the state of state channel development is right now, and where we're going with layer 2 solutions for scaling blockchains.