Explore the challenges and complexities of service mesh implementation in this 30-minute conference talk from KubeCon + CloudNativeCon. Delve into the tradeoffs, common mistakes, and lessons learned in the rapidly evolving service mesh ecosystem. Gain insights on successfully building and running cloud-native applications, with a focus on Linkerd examples. Learn about meshing pods, routing traffic, implementing mutual TLS, and monitoring mesh health. Understand the importance of maintaining boundaries, handling TCP and hosts, and addressing bugs. Discover when a service mesh is necessary and how to analyze its effectiveness. Examine the possibilities of zero configuration and the realities of code changes. Acquire knowledge on assessing both application and mesh performance in this comprehensive overview of service mesh complexities.