Explore a novel approach to distributed tracing in this 21-minute lightning talk from KubeCon + CloudNativeCon Europe 2023. Discover how to overcome the challenges of monitoring and debugging modern cloud-based applications without the need for extensive application instrumentation. Learn about a method that combines external observations using an envoy-based service mesh with timing analysis of requests to construct accurate end-to-end traces. Understand how this approach can boost trace reconstruction accuracy to 96% compared to traditional methods, making distributed tracing more accessible for large microservices and legacy applications. Gain insights into answering critical developer queries and improving the overall debugging process for complex distributed systems.