Explore the complexities of distributed systems in this insightful conference talk that delves into the challenges of implementing a seemingly simple checkout page. Learn how six lines of code can hide potential failures and system-wide issues. Discover the importance of anticipating and planning for failures in distributed computing. Examine various strategies for handling failures between interconnected systems, including retrying, undoing actions, and coordinating processes. Gain valuable insights into modern e-commerce practices, such as background processing for order fulfillment. Investigate advanced concepts like routing slips, saga patterns, and process manager patterns. Compare orchestration and choreography approaches in distributed system design. Walk away with a deeper understanding of building resilient checkout processes that embrace the realities of distributed computing.