In this episode of 'Back to Basics', Krupanidhi Jay, a Senior Solutions Architect with AWS, explores chaos engineering using AWS Fault Injection Simulator (FIS). He discusses the challenges of distributed systems, the importance of chaos engineering, and how FIS provides a managed service for running controlled fault injection experiments. Krupanidhi explains how FIS integrates with AWS services, allows for experiment templates, and provides built-in safeguards for running chaos experiments at scale. The video highlights the benefits of using FIS for periodic gameday events and integrating it into continuous delivery pipelines to improve application resilience.