The Dragon Named Scale: Building Systems That Grow Every growing kingdom eventually attracts dragons. Success changes software in ways that are easy to underestimate. The application that comfortably serves a handful of users suddenly supports thousands. Database queries that once completed in milliseconds begin competing for resources. Features that once lived peacefully beside one another begin interacting in unexpected ways. None of these changes necessarily mean the original architecture was flawed. They simply reflect a reality every successful system eventually encounters. Growth exposes assumptions that remained invisible while the kingdom was still small. The fantasy kingdoms that have accompanied us throughout The Architect’s Grimoire offer another lesson worth carrying into…