In this AWS re:Invent 2022 session, Eric Johnson explores building next-generation applications with event-driven architectures. He covers enterprise integration patterns, event-driven architecture concepts, and handling event duplication using idempotency. Johnson explains the benefits of decoupling systems, using asynchronous communication models, and leveraging AWS services like Amazon SQS, Amazon EventBridge, and AWS Step Functions to build resilient, scalable architectures. He emphasizes the importance of understanding coupling, choosing appropriate integration patterns, and implementing idempotency to handle potential event duplications in distributed systems. The talk provides practical insights for developers and architects looking to build modern, event-driven applications on AWS.