What Software Scalability Actually Means (and Why It Could Make or Break Your App)

A product that works perfectly for 100 users can collapse under 10,000 users. At low traffic, almost any architecture can look healthy. Pages load quickly, background jobs finish on time, database queries feel instant, and deployments seem uneventful. However, as user demand grows, hidden assumptions start to break. The single server stops being simple and becomes a bottleneck. The database that…