Kelsey Hightower discusses the concept of observability and its importance in software development. He explains that observability is not just about collecting data, but also about extracting value from it and making informed decisions. Kelsey emphasizes the need for balance between collecting data and creating actionable insights, and encourages developers to be patient and learn what they can before trying to adopt new tools or technologies. He also discusses the challenges of implementing observability in a complex system, including the need for standardization and common interfaces. Additionally, Kelsey shares his perspective on multi-cloud and argues that it's not about having multiple cloud providers, but rather about bridging the gaps between them through networking and authentication.