S2 is a new platform that aims to differentiate itself from existing solutions like Apache Pulsar. The primary discussions are centered around its capabilities in relation to features like transactions, queues, and durable timers that Pulsar already provides. Users are curious about the core functionalities of S2 and how it might be advantageous compared to Pulsar. Additionally, there is an inquiry about integrating S2 with existing cloud infrastructures, indicating a need for flexibility in storage options. Furthermore, there’s a clarification request to distinguish S2 from S2 Geometry, suggesting a potential for brand confusion.