Description: The event horizon is a fundamental concept in the theory of relativity and black hole physics, which has been adapted to other fields such as computing, especially in the realm of logging and observability. In this context, it refers to a boundary in a system beyond which events cannot affect the observer. This concept implies that there are information or occurrences that, once this limit is crossed, cannot be perceived or recorded by the monitoring system. In technology, the event horizon relates to a system’s ability to capture and analyze data in real-time, as well as the inherent limitations of observing events in complex systems. The idea is that, just as in physics, where events within a black hole’s event horizon are inaccessible to an external observer, in logging and observability, there are data points that may fall outside the reach of monitoring tools due to latency, packet loss, or lack of visibility in certain parts of the system. This concept underscores the importance of designing monitoring systems that minimize the possibility of losing critical information and that allow developers and operators to have a clear and comprehensive view of the state of their applications and services.
