Observability in real time at scale

This document discusses observability and building an observability platform. It begins with defining observability and distinguishing it from monitoring. It describes the need for observability to understand system and user behavior based on inputs and outputs. The document outlines challenges with existing observability tools and proposes rethinking observability. It presents considerations for building a platform that enables exploration and quick root cause analysis. Finally, it discusses enabling observability at scale through approaches like messaging systems and querying tools.