Explore the fascinating parallels between the legacy of telegraphy and modern messaging systems in this thought-provoking conference talk. Delve into the history of wireless telegraphy and its impact on communication, before drawing connections to contemporary technologies like Apache Pulsar. Gain insights into the design considerations and engineering principles that enable globally distributed, low-latency applications to run on Apache Pulsar. Examine the storage model, replication strategies, and deployment techniques, comparing them to the design of wireless telegraphy. Witness a demonstration of Apache Pulsar functions and Pulsar SQL, showcasing the system's extensibility. Walk away with a deep understanding of Apache Pulsar's architecture, including its data storage, transmission, security features, and processing capabilities. Perfect for those interested in the evolution of communication technologies and the cutting-edge developments in distributed messaging systems.