Martin Kleppmann argues that the CAP theorem is too simplistic and widely misunderstood to be useful in characterizing systems. Brewer’s original CAP Conjecture was eventually proven by Gilbert and Lynch as the CAP Theorem, showcasing the impossibility of achieving Consistency, Availability, and Partition Tolerance simultaneously in a distributed system. Despite its fame, the CAP Theorem has limitations and may not apply in all design challenges. Kleppmann suggests exploring alternatives like Invariant Confluence to evaluate the necessity of coordination in distributed systems. Overall, while the CAP theorem has sparked valuable discussions on trade-offs in distributed systems, it may not be the definitive framework for all scenarios.
https://blog.dtornow.com/the-cap-theorem.-the-bad-the-bad-the-ugly/