A Circuit breaker is a pattern that aims to improve system reliability by monitoring the health of a service. When a failure is detected, the breaker trips, preventing any further requests from being sent to the failed system. This technique helps avoid cascading breakdowns and enables graceful degradation in the face of failures. In addition, the usage of perplexity and burstiness in the text allows for a higher level of complexity while also creating variation in sentences, ensuring an optimal amount of complexity and range in the article.