In this discussion, Mike Shi, co-founder of HyperDX and Head of Observability at ClickHouse, shares insights on ClickStack, a new open-source observability stack combining ClickHouse, OpenTelemetry, and HyperDX. He explains why they chose ClickHouse over Elasticsearch for its performance and tuning advantages. Mike also discusses the user experience goals of HyperDX, the benefits of adopting OpenTelemetry, and the challenges of open-source product development. He highlights real-world applications, including how companies like OpenAI and Tesla leverage ClickStack for effective telemetry.