Create an interactive HTML presentation explaining the concept of 'Network Effects' where connections grow exponentially as user count increases (e.g., 5x users = 27x connections). The interface should include a slider allowing the viewer to manually adjust the number of users and see the resulting change in connection density in real-time. Use only HTML and JavaScript without external image assets. Include voice narration synchronized with the visual changes.
中文翻譯
創建一份交互式 HTML 演示，解釋“Network Effects”這一概念：隨着用戶數量增加，連接數呈指數增長（例如 5 倍用戶 = 27 倍連接）。界面應包含一個滑塊，讓觀看者可以手動調整用戶數量，並實時看到連接密度隨之發生的變化。只使用 HTML 和 JavaScript，不使用外部圖片素材。包含與視覺變化同步的語音旁白。
