The 3,000 Incident Postmortem: Why Caches Are Actually the Enemy

This episode explores Marc Brooker's controversial claim that caching, often a default scaling solution, is a major cause of catastrophic "metastable" system failures. It delves into the importance of deep postmortem analysis, moving beyond superficial root causes to question observability, testing, and fundamental architectural assumptions. Listeners will learn how unquestioning reliance on caching can create systems prone to persistent, unrecoverable breakdowns.