In this week's episode, we sit down with Henri Pihkala (https://twitter.com/henripihkala) from Streamr (https://www.streamr.com/) to talk p2p messaging and what it means. We cover topics like pubsub, compare it to whisper, talk about the needs of different messaging systems as well as dig into why one would want to decentralize something like this. Finally we take a look at the data marketplace idea that streamr is trying out and what potential use-cases that could have.