The article by Andrew Deally discusses the challenges and advancements in fintech order architecture, focusing on improving resilience and consistency at scale. Traditional financial systems used single-instance relational databases like Oracle or SQL Server, which faced limitations in handling high transaction volumes and lacked resilience against node and data center failures. These systems often required complex, costly, and manually intensive methods to achieve some level of resilience, such as using asynchronous technologies or offloading transactions to distributed NoSQL systems. However, fintech companies now seek solutions that ensure zero downtime and data loss without sacrificing consistency. CockroachDB offers a modern alternative with its distributed SQL database, which inherently provides high availability, resilience, and reduced complexity by managing data consistency and replication automatically through the RAFT protocol. This approach allows for effective scaling across multiple nodes and data centers, ensuring efficient trade order execution while meeting regulatory requirements and supporting data expiration and change event emissions through features like TTL and changefeeds.