There is no question that there is a lot of excitement around the potential for blockchain technology to revolutionize how financial services are delivered. But what does this mean in practical terms, and more specifically, how can defi (defi = decentralized finance) play a role?To start with, let's take a step back and look at the bigger picture. The fundamental problem that blockchain was designed to solve is the need for trust between parties who don't know or trust each other. I...