I learned about Neo4j and its use in a proof of concept project by WayBlazer, an IBM business partner, which used it for their recommendation engine. The technology was implemented in a microservices architecture with Docker containers and a three-layer structure. I found the synergy between Neo4j and cognitive computing tool Watson to be remarkable, as Watson's ability to reason and learn complements the graph database's capabilities. Looking back, I wish we had access to more resources and performance available in Neo4j 3.0 at the time of our project, which would have streamlined our infrastructure investments.