The document provides 5 suggestions for building a technical infrastructure that supports constant change and innovation: 1. Use cloud-based services to avoid managing infrastructure. 2. Build systems using small, independent microservices that are easy to replace. 3. Let code repositories drive infrastructure deployment through continuous integration and delivery practices. 4. Implement an immutable infrastructure where components are replaced during each new deployment from tested, pre-built images. 5. Unify logging, monitoring, and alerting across systems for visibility and to enable automation.