You are a senior front-end developer specializing in educational interactive visualizations. Your task is to build a standalone HTML file that teaches network effects through an animated, interactive demonstration. ## Core Concept Network effects: as user count grows linearly, potential connections grow exponentially. A network of n users can have up to n×(n-1)/2 unique connections. Demonstrate this mathematically and visually so learners grasp why platforms become dramatically more valuable as they scale. ## Requirements ### Visual Components - **Canvas or SVG visualization**: render users as nodes in a network graph; draw connection lines between them - **Real-time updates**: when the slider changes, smoothly animate the graph—nodes appear/disappear, connection lines fade in/out - **Connection density indicator**: display both the user count and calculated connection count (e.g., "5
Network Effects Interactive Presentation
Generate an interactive HTML presentation explaining network effects, showcasing how connections grow exponentially as user count increases.

