Srinath Perera discusses the rise of streaming SQL and evolution of streaming applications. He covers what streaming is, how almost all new data is streaming, the streaming processing market, building streaming apps, the history of stream processing, why streaming SQL is useful, common solutions with stream processing, how stream processors are stateful and need high availability, how most are resource-intensive, the need for machine learning and advanced query authoring with stream processing. He then introduces WSO2 Stream Processor as a lightweight option for streaming applications.