In this presentation, Tammy will share the many wonders of black holes - not in space - but in computer science. We'll explore what happens when requests never make it out of a blackhole, how this impacts observability, and what we can learn from blackhole-related failures. Tammy will explain how you can use black holes to learn how to make systems more reliable. We'll send requests into black holes on purpose and observe the consequences in detail. This session will be a technical deep dive on strange failure modes that are unexpected and surprising.